18817996730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{26951}}^1$

素因数の和:27143

約数の個数: 64

約数和(自身を含む): 37654315776

約数和(自身を除く): 18836319046

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 131, 205, 262, 410, 533, 655, 1066, 1310, 1703, 2665, 3406, 5330, 5371, 8515, 10742, 17030, 26855, 26951, 53710, 53902, 69823, 134755, 139646, 269510, 349115, 350363, 698230, 700726, 1104991, 1751815, 2209982, 3503630, 3530581, 5524955, 7061162, 11049910, 14364883, 17652905, 28729766, 35305810, 45897553, 71824415, 91795106, 143648830, 144753821, 229487765, 289507642, 458975530, 723769105, 1447538210, 1881799673, 3763599346, 9408998365, 18817996730]

約数ペア:

[(1, 18817996730), (2, 9408998365), (5, 3763599346), (10, 1881799673), (13, 1447538210), (26, 723769105), (41, 458975530), (65, 289507642), (82, 229487765), (130, 144753821), (131, 143648830), (205, 91795106), (262, 71824415), (410, 45897553), (533, 35305810), (655, 28729766), (1066, 17652905), (1310, 14364883), (1703, 11049910), (2665, 7061162), (3406, 5524955), (5330, 3530581), (5371, 3503630), (8515, 2209982), (10742, 1751815), (17030, 1104991), (26855, 700726), (26951, 698230), (53710, 350363), (53902, 349115), (69823, 269510), (134755, 139646)]