281818420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{26437}}^1$

素因数の和:26500

約数の個数: 48

約数和(自身を含む): 652912848

約数和(自身を除く): 371094428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 26437, 52874, 105748, 132185, 264370, 343681, 528740, 687362, 1083917, 1374724, 1718405, 2167834, 3436810, 4335668, 5419585, 6873620, 10839170, 14090921, 21678340, 28181842, 56363684, 70454605, 140909210, 281818420]

約数ペア:

[(1, 281818420), (2, 140909210), (4, 70454605), (5, 56363684), (10, 28181842), (13, 21678340), (20, 14090921), (26, 10839170), (41, 6873620), (52, 5419585), (65, 4335668), (82, 3436810), (130, 2167834), (164, 1718405), (205, 1374724), (260, 1083917), (410, 687362), (533, 528740), (820, 343681), (1066, 264370), (2132, 132185), (2665, 105748), (5330, 52874), (10660, 26437)]