71722820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{887}}^1$

素因数の和:1220

約数の個数: 48

約数和(自身を含む): 162908928

約数和(自身を除く): 91186108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 311, 622, 887, 1244, 1555, 1774, 3110, 3548, 4043, 4435, 6220, 8086, 8870, 11531, 16172, 17740, 20215, 23062, 40430, 46124, 57655, 80860, 115310, 230620, 275857, 551714, 1103428, 1379285, 2758570, 3586141, 5517140, 7172282, 14344564, 17930705, 35861410, 71722820]

約数ペア:

[(1, 71722820), (2, 35861410), (4, 17930705), (5, 14344564), (10, 7172282), (13, 5517140), (20, 3586141), (26, 2758570), (52, 1379285), (65, 1103428), (130, 551714), (260, 275857), (311, 230620), (622, 115310), (887, 80860), (1244, 57655), (1555, 46124), (1774, 40430), (3110, 23062), (3548, 20215), (4043, 17740), (4435, 16172), (6220, 11531), (8086, 8870)]