80805400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31079}}^1$

素因数の和:31108

約数の個数: 48

約数和(自身を含む): 202330800

約数和(自身を除く): 121525400

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 31079, 62158, 124316, 155395, 248632, 310790, 404027, 621580, 776975, 808054, 1243160, 1553950, 1616108, 2020135, 3107900, 3232216, 4040270, 6215800, 8080540, 10100675, 16161080, 20201350, 40402700, 80805400]

約数ペア:

[(1, 80805400), (2, 40402700), (4, 20201350), (5, 16161080), (8, 10100675), (10, 8080540), (13, 6215800), (20, 4040270), (25, 3232216), (26, 3107900), (40, 2020135), (50, 1616108), (52, 1553950), (65, 1243160), (100, 808054), (104, 776975), (130, 621580), (200, 404027), (260, 310790), (325, 248632), (520, 155395), (650, 124316), (1300, 62158), (2600, 31079)]