81131820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1033}}^1$

素因数の和:1080

約数の個数: 192

約数和(自身を含む): 300174336

約数和(自身を除く): 219042516

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 17, 20, 21, 22, 28, 30, 33, 34, 35, 42, 44, 51, 55, 60, 66, 68, 70, 77, 84, 85, 102, 105, 110, 119, 132, 140, 154, 165, 170, 187, 204, 210, 220, 231, 238, 255, 308, 330, 340, 357, 374, 385, 420, 462, 476, 510, 561, 595, 660, 714, 748, 770, 924, 935, 1020, 1033, 1122, 1155, 1190, 1309, 1428, 1540, 1785, 1870, 2066, 2244, 2310, 2380, 2618, 2805, 3099, 3570, 3740, 3927, 4132, 4620, 5165, 5236, 5610, 6198, 6545, 7140, 7231, 7854, 10330, 11220, 11363, 12396, 13090, 14462, 15495, 15708, 17561, 19635, 20660, 21693, 22726, 26180, 28924, 30990, 34089, 35122, 36155, 39270, 43386, 45452, 52683, 56815, 61980, 68178, 70244, 72310, 78540, 79541, 86772, 87805, 105366, 108465, 113630, 122927, 136356, 144620, 159082, 170445, 175610, 193171, 210732, 216930, 227260, 238623, 245854, 263415, 318164, 340890, 351220, 368781, 386342, 397705, 433860, 477246, 491708, 526830, 579513, 614635, 681780, 737562, 772684, 795410, 954492, 965855, 1053660, 1159026, 1193115, 1229270, 1352197, 1475124, 1590820, 1843905, 1931710, 2318052, 2386230, 2458540, 2704394, 2897565, 3687810, 3863420, 4056591, 4772460, 5408788, 5795130, 6760985, 7375620, 8113182, 11590260, 13521970, 16226364, 20282955, 27043940, 40565910, 81131820]

約数ペア:

[(1, 81131820), (2, 40565910), (3, 27043940), (4, 20282955), (5, 16226364), (6, 13521970), (7, 11590260), (10, 8113182), (11, 7375620), (12, 6760985), (14, 5795130), (15, 5408788), (17, 4772460), (20, 4056591), (21, 3863420), (22, 3687810), (28, 2897565), (30, 2704394), (33, 2458540), (34, 2386230), (35, 2318052), (42, 1931710), (44, 1843905), (51, 1590820), (55, 1475124), (60, 1352197), (66, 1229270), (68, 1193115), (70, 1159026), (77, 1053660), (84, 965855), (85, 954492), (102, 795410), (105, 772684), (110, 737562), (119, 681780), (132, 614635), (140, 579513), (154, 526830), (165, 491708), (170, 477246), (187, 433860), (204, 397705), (210, 386342), (220, 368781), (231, 351220), (238, 340890), (255, 318164), (308, 263415), (330, 245854), (340, 238623), (357, 227260), (374, 216930), (385, 210732), (420, 193171), (462, 175610), (476, 170445), (510, 159082), (561, 144620), (595, 136356), (660, 122927), (714, 113630), (748, 108465), (770, 105366), (924, 87805), (935, 86772), (1020, 79541), (1033, 78540), (1122, 72310), (1155, 70244), (1190, 68178), (1309, 61980), (1428, 56815), (1540, 52683), (1785, 45452), (1870, 43386), (2066, 39270), (2244, 36155), (2310, 35122), (2380, 34089), (2618, 30990), (2805, 28924), (3099, 26180), (3570, 22726), (3740, 21693), (3927, 20660), (4132, 19635), (4620, 17561), (5165, 15708), (5236, 15495), (5610, 14462), (6198, 13090), (6545, 12396), (7140, 11363), (7231, 11220), (7854, 10330)]