86561720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:397

約数の個数: 128

約数和(自身を含む): 239500800

約数和(自身を除く): 152939080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 53, 56, 70, 76, 95, 106, 133, 140, 152, 190, 212, 265, 266, 280, 307, 371, 380, 424, 530, 532, 614, 665, 742, 760, 1007, 1060, 1064, 1228, 1330, 1484, 1535, 1855, 2014, 2120, 2149, 2456, 2660, 2968, 3070, 3710, 4028, 4298, 5035, 5320, 5833, 6140, 7049, 7420, 8056, 8596, 10070, 10745, 11666, 12280, 14098, 14840, 16271, 17192, 20140, 21490, 23332, 28196, 29165, 32542, 35245, 40280, 40831, 42980, 46664, 56392, 58330, 65084, 70490, 81355, 81662, 85960, 113897, 116660, 130168, 140980, 162710, 163324, 204155, 227794, 233320, 281960, 309149, 325420, 326648, 408310, 455588, 569485, 618298, 650840, 816620, 911176, 1138970, 1236596, 1545745, 1633240, 2164043, 2277940, 2473192, 3091490, 4328086, 4555880, 6182980, 8656172, 10820215, 12365960, 17312344, 21640430, 43280860, 86561720]

約数ペア:

[(1, 86561720), (2, 43280860), (4, 21640430), (5, 17312344), (7, 12365960), (8, 10820215), (10, 8656172), (14, 6182980), (19, 4555880), (20, 4328086), (28, 3091490), (35, 2473192), (38, 2277940), (40, 2164043), (53, 1633240), (56, 1545745), (70, 1236596), (76, 1138970), (95, 911176), (106, 816620), (133, 650840), (140, 618298), (152, 569485), (190, 455588), (212, 408310), (265, 326648), (266, 325420), (280, 309149), (307, 281960), (371, 233320), (380, 227794), (424, 204155), (530, 163324), (532, 162710), (614, 140980), (665, 130168), (742, 116660), (760, 113897), (1007, 85960), (1060, 81662), (1064, 81355), (1228, 70490), (1330, 65084), (1484, 58330), (1535, 56392), (1855, 46664), (2014, 42980), (2120, 40831), (2149, 40280), (2456, 35245), (2660, 32542), (2968, 29165), (3070, 28196), (3710, 23332), (4028, 21490), (4298, 20140), (5035, 17192), (5320, 16271), (5833, 14840), (6140, 14098), (7049, 12280), (7420, 11666), (8056, 10745), (8596, 10070)]