77990220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{331}}^1$

素因数の和:381

約数の個数: 288

約数和(自身を含む): 313238016

約数和(自身を除く): 235247796

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 17, 18, 20, 21, 22, 28, 30, 33, 34, 35, 36, 42, 44, 45, 51, 55, 60, 63, 66, 68, 70, 77, 84, 85, 90, 99, 102, 105, 110, 119, 126, 132, 140, 153, 154, 165, 170, 180, 187, 198, 204, 210, 220, 231, 238, 252, 255, 306, 308, 315, 330, 331, 340, 357, 374, 385, 396, 420, 462, 476, 495, 510, 561, 595, 612, 630, 660, 662, 693, 714, 748, 765, 770, 924, 935, 990, 993, 1020, 1071, 1122, 1155, 1190, 1260, 1309, 1324, 1386, 1428, 1530, 1540, 1655, 1683, 1785, 1870, 1980, 1986, 2142, 2244, 2310, 2317, 2380, 2618, 2772, 2805, 2979, 3060, 3310, 3366, 3465, 3570, 3641, 3740, 3927, 3972, 4284, 4620, 4634, 4965, 5236, 5355, 5610, 5627, 5958, 6545, 6620, 6732, 6930, 6951, 7140, 7282, 7854, 8415, 9268, 9930, 10710, 10923, 11220, 11254, 11585, 11781, 11916, 13090, 13860, 13902, 14564, 14895, 15708, 16830, 16881, 18205, 19635, 19860, 20853, 21420, 21846, 22508, 23170, 23562, 25487, 26180, 27804, 28135, 29790, 32769, 33660, 33762, 34755, 36410, 39270, 39389, 41706, 43692, 46340, 47124, 50643, 50974, 54615, 56270, 58905, 59580, 61897, 65538, 67524, 69510, 72820, 76461, 78540, 78778, 83412, 84405, 101286, 101948, 104265, 109230, 112540, 117810, 118167, 123794, 127435, 131076, 139020, 152922, 157556, 163845, 168810, 185691, 196945, 202572, 208530, 218460, 229383, 235620, 236334, 247588, 253215, 254870, 305844, 309485, 327690, 337620, 354501, 371382, 382305, 393890, 417060, 433279, 458766, 472668, 506430, 509740, 557073, 590835, 618970, 655380, 709002, 742764, 764610, 787780, 866558, 917532, 928455, 1012860, 1114146, 1146915, 1181670, 1237940, 1299837, 1418004, 1529220, 1733116, 1772505, 1856910, 2166395, 2228292, 2293830, 2363340, 2599674, 2785365, 3545010, 3713820, 3899511, 4332790, 4587660, 5199348, 5570730, 6499185, 7090020, 7799022, 8665580, 11141460, 12998370, 15598044, 19497555, 25996740, 38995110, 77990220]

約数ペア:

[(1, 77990220), (2, 38995110), (3, 25996740), (4, 19497555), (5, 15598044), (6, 12998370), (7, 11141460), (9, 8665580), (10, 7799022), (11, 7090020), (12, 6499185), (14, 5570730), (15, 5199348), (17, 4587660), (18, 4332790), (20, 3899511), (21, 3713820), (22, 3545010), (28, 2785365), (30, 2599674), (33, 2363340), (34, 2293830), (35, 2228292), (36, 2166395), (42, 1856910), (44, 1772505), (45, 1733116), (51, 1529220), (55, 1418004), (60, 1299837), (63, 1237940), (66, 1181670), (68, 1146915), (70, 1114146), (77, 1012860), (84, 928455), (85, 917532), (90, 866558), (99, 787780), (102, 764610), (105, 742764), (110, 709002), (119, 655380), (126, 618970), (132, 590835), (140, 557073), (153, 509740), (154, 506430), (165, 472668), (170, 458766), (180, 433279), (187, 417060), (198, 393890), (204, 382305), (210, 371382), (220, 354501), (231, 337620), (238, 327690), (252, 309485), (255, 305844), (306, 254870), (308, 253215), (315, 247588), (330, 236334), (331, 235620), (340, 229383), (357, 218460), (374, 208530), (385, 202572), (396, 196945), (420, 185691), (462, 168810), (476, 163845), (495, 157556), (510, 152922), (561, 139020), (595, 131076), (612, 127435), (630, 123794), (660, 118167), (662, 117810), (693, 112540), (714, 109230), (748, 104265), (765, 101948), (770, 101286), (924, 84405), (935, 83412), (990, 78778), (993, 78540), (1020, 76461), (1071, 72820), (1122, 69510), (1155, 67524), (1190, 65538), (1260, 61897), (1309, 59580), (1324, 58905), (1386, 56270), (1428, 54615), (1530, 50974), (1540, 50643), (1655, 47124), (1683, 46340), (1785, 43692), (1870, 41706), (1980, 39389), (1986, 39270), (2142, 36410), (2244, 34755), (2310, 33762), (2317, 33660), (2380, 32769), (2618, 29790), (2772, 28135), (2805, 27804), (2979, 26180), (3060, 25487), (3310, 23562), (3366, 23170), (3465, 22508), (3570, 21846), (3641, 21420), (3740, 20853), (3927, 19860), (3972, 19635), (4284, 18205), (4620, 16881), (4634, 16830), (4965, 15708), (5236, 14895), (5355, 14564), (5610, 13902), (5627, 13860), (5958, 13090), (6545, 11916), (6620, 11781), (6732, 11585), (6930, 11254), (6951, 11220), (7140, 10923), (7282, 10710), (7854, 9930), (8415, 9268)]