207915760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6449}}^1$

素因数の和:6506

約数の個数: 80

約数和(自身を含む): 537465600

約数和(自身を除く): 329549840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 6449, 8060, 12898, 16120, 25796, 32240, 32245, 51592, 64490, 83837, 103184, 128980, 167674, 199919, 257960, 335348, 399838, 419185, 515920, 670696, 799676, 838370, 999595, 1341392, 1599352, 1676740, 1999190, 2598947, 3198704, 3353480, 3998380, 5197894, 6706960, 7996760, 10395788, 12994735, 15993520, 20791576, 25989470, 41583152, 51978940, 103957880, 207915760]

約数ペア:

[(1, 207915760), (2, 103957880), (4, 51978940), (5, 41583152), (8, 25989470), (10, 20791576), (13, 15993520), (16, 12994735), (20, 10395788), (26, 7996760), (31, 6706960), (40, 5197894), (52, 3998380), (62, 3353480), (65, 3198704), (80, 2598947), (104, 1999190), (124, 1676740), (130, 1599352), (155, 1341392), (208, 999595), (248, 838370), (260, 799676), (310, 670696), (403, 515920), (496, 419185), (520, 399838), (620, 335348), (806, 257960), (1040, 199919), (1240, 167674), (1612, 128980), (2015, 103184), (2480, 83837), (3224, 64490), (4030, 51592), (6448, 32245), (6449, 32240), (8060, 25796), (12898, 16120)]