81987100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{63067}}^1$

素因数の和:63094

約数の個数: 36

約数和(自身を含む): 191600584

約数和(自身を除く): 109613484

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 63067, 126134, 252268, 315335, 630670, 819871, 1261340, 1576675, 1639742, 3153350, 3279484, 4099355, 6306700, 8198710, 16397420, 20496775, 40993550, 81987100]

約数ペア:

[(1, 81987100), (2, 40993550), (4, 20496775), (5, 16397420), (10, 8198710), (13, 6306700), (20, 4099355), (25, 3279484), (26, 3153350), (50, 1639742), (52, 1576675), (65, 1261340), (100, 819871), (130, 630670), (260, 315335), (325, 252268), (650, 126134), (1300, 63067)]