28521240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:114

約数の個数: 256

約数和(自身を含む): 104509440

約数和(自身を除く): 75988200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 17, 20, 22, 24, 30, 31, 33, 34, 40, 41, 44, 51, 55, 60, 62, 66, 68, 82, 85, 88, 93, 102, 110, 120, 123, 124, 132, 136, 155, 164, 165, 170, 186, 187, 204, 205, 220, 246, 248, 255, 264, 310, 328, 330, 340, 341, 372, 374, 408, 410, 440, 451, 465, 492, 510, 527, 561, 615, 620, 660, 680, 682, 697, 744, 748, 820, 902, 930, 935, 984, 1020, 1023, 1054, 1122, 1230, 1240, 1271, 1320, 1353, 1364, 1394, 1496, 1581, 1640, 1705, 1804, 1860, 1870, 2040, 2046, 2091, 2108, 2244, 2255, 2460, 2542, 2635, 2706, 2728, 2788, 2805, 3162, 3410, 3485, 3608, 3720, 3740, 3813, 4092, 4182, 4216, 4488, 4510, 4920, 5084, 5115, 5270, 5412, 5576, 5610, 5797, 6324, 6355, 6765, 6820, 6970, 7480, 7626, 7667, 7905, 8184, 8364, 9020, 10168, 10230, 10455, 10540, 10824, 11220, 11594, 12648, 12710, 13530, 13640, 13940, 13981, 15252, 15334, 15810, 16728, 17391, 18040, 19065, 20460, 20910, 21080, 21607, 22440, 23001, 23188, 25420, 27060, 27880, 27962, 28985, 30504, 30668, 31620, 34782, 38130, 38335, 40920, 41820, 41943, 43214, 46002, 46376, 50840, 54120, 55924, 57970, 61336, 63240, 64821, 69564, 69905, 76260, 76670, 83640, 83886, 86428, 86955, 92004, 108035, 111848, 115005, 115940, 129642, 139128, 139810, 152520, 153340, 167772, 172856, 173910, 184008, 209715, 216070, 230010, 231880, 237677, 259284, 279620, 306680, 324105, 335544, 347820, 419430, 432140, 460020, 475354, 518568, 559240, 648210, 695640, 713031, 838860, 864280, 920040, 950708, 1188385, 1296420, 1426062, 1677720, 1901416, 2376770, 2592840, 2852124, 3565155, 4753540, 5704248, 7130310, 9507080, 14260620, 28521240]

約数ペア:

[(1, 28521240), (2, 14260620), (3, 9507080), (4, 7130310), (5, 5704248), (6, 4753540), (8, 3565155), (10, 2852124), (11, 2592840), (12, 2376770), (15, 1901416), (17, 1677720), (20, 1426062), (22, 1296420), (24, 1188385), (30, 950708), (31, 920040), (33, 864280), (34, 838860), (40, 713031), (41, 695640), (44, 648210), (51, 559240), (55, 518568), (60, 475354), (62, 460020), (66, 432140), (68, 419430), (82, 347820), (85, 335544), (88, 324105), (93, 306680), (102, 279620), (110, 259284), (120, 237677), (123, 231880), (124, 230010), (132, 216070), (136, 209715), (155, 184008), (164, 173910), (165, 172856), (170, 167772), (186, 153340), (187, 152520), (204, 139810), (205, 139128), (220, 129642), (246, 115940), (248, 115005), (255, 111848), (264, 108035), (310, 92004), (328, 86955), (330, 86428), (340, 83886), (341, 83640), (372, 76670), (374, 76260), (408, 69905), (410, 69564), (440, 64821), (451, 63240), (465, 61336), (492, 57970), (510, 55924), (527, 54120), (561, 50840), (615, 46376), (620, 46002), (660, 43214), (680, 41943), (682, 41820), (697, 40920), (744, 38335), (748, 38130), (820, 34782), (902, 31620), (930, 30668), (935, 30504), (984, 28985), (1020, 27962), (1023, 27880), (1054, 27060), (1122, 25420), (1230, 23188), (1240, 23001), (1271, 22440), (1320, 21607), (1353, 21080), (1364, 20910), (1394, 20460), (1496, 19065), (1581, 18040), (1640, 17391), (1705, 16728), (1804, 15810), (1860, 15334), (1870, 15252), (2040, 13981), (2046, 13940), (2091, 13640), (2108, 13530), (2244, 12710), (2255, 12648), (2460, 11594), (2542, 11220), (2635, 10824), (2706, 10540), (2728, 10455), (2788, 10230), (2805, 10168), (3162, 9020), (3410, 8364), (3485, 8184), (3608, 7905), (3720, 7667), (3740, 7626), (3813, 7480), (4092, 6970), (4182, 6820), (4216, 6765), (4488, 6355), (4510, 6324), (4920, 5797), (5084, 5610), (5115, 5576), (5270, 5412)]