81779620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8501}}^1$

素因数の和:8560

約数の個数: 48

約数和(自身を含む): 189968688

約数和(自身を除く): 108189068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 185, 260, 370, 481, 740, 962, 1924, 2405, 4810, 8501, 9620, 17002, 34004, 42505, 85010, 110513, 170020, 221026, 314537, 442052, 552565, 629074, 1105130, 1258148, 1572685, 2210260, 3145370, 4088981, 6290740, 8177962, 16355924, 20444905, 40889810, 81779620]

約数ペア:

[(1, 81779620), (2, 40889810), (4, 20444905), (5, 16355924), (10, 8177962), (13, 6290740), (20, 4088981), (26, 3145370), (37, 2210260), (52, 1572685), (65, 1258148), (74, 1105130), (130, 629074), (148, 552565), (185, 442052), (260, 314537), (370, 221026), (481, 170020), (740, 110513), (962, 85010), (1924, 42505), (2405, 34004), (4810, 17002), (8501, 9620)]