142712840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1621}}^1$

素因数の和:1734

約数の個数: 64

約数和(自身を含む): 336337920

約数和(自身を除く): 193625080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 71, 124, 142, 155, 248, 284, 310, 355, 568, 620, 710, 1240, 1420, 1621, 2201, 2840, 3242, 4402, 6484, 8105, 8804, 11005, 12968, 16210, 17608, 22010, 32420, 44020, 50251, 64840, 88040, 100502, 115091, 201004, 230182, 251255, 402008, 460364, 502510, 575455, 920728, 1005020, 1150910, 2010040, 2301820, 3567821, 4603640, 7135642, 14271284, 17839105, 28542568, 35678210, 71356420, 142712840]

約数ペア:

[(1, 142712840), (2, 71356420), (4, 35678210), (5, 28542568), (8, 17839105), (10, 14271284), (20, 7135642), (31, 4603640), (40, 3567821), (62, 2301820), (71, 2010040), (124, 1150910), (142, 1005020), (155, 920728), (248, 575455), (284, 502510), (310, 460364), (355, 402008), (568, 251255), (620, 230182), (710, 201004), (1240, 115091), (1420, 100502), (1621, 88040), (2201, 64840), (2840, 50251), (3242, 44020), (4402, 32420), (6484, 22010), (8105, 17608), (8804, 16210), (11005, 12968)]