2581558720

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{620567}}^1$

素因数の和:620597

約数の個数: 56

約数和(自身を含む): 6620219424

約数和(自身を除く): 4038660704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 620567, 1241134, 2482268, 3102835, 4964536, 6205670, 8067371, 9929072, 12411340, 16134742, 19858144, 24822680, 32269484, 39716288, 40336855, 49645360, 64538968, 80673710, 99290720, 129077936, 161347420, 198581440, 258155872, 322694840, 516311744, 645389680, 1290779360, 2581558720]

約数ペア:

[(1, 2581558720), (2, 1290779360), (4, 645389680), (5, 516311744), (8, 322694840), (10, 258155872), (13, 198581440), (16, 161347420), (20, 129077936), (26, 99290720), (32, 80673710), (40, 64538968), (52, 49645360), (64, 40336855), (65, 39716288), (80, 32269484), (104, 24822680), (130, 19858144), (160, 16134742), (208, 12411340), (260, 9929072), (320, 8067371), (416, 6205670), (520, 4964536), (832, 3102835), (1040, 2482268), (2080, 1241134), (4160, 620567)]