61913720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{631}}^1$

素因数の和:876

約数の個数: 64

約数和(自身を含む): 152893440

約数和(自身を除く): 90979720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 223, 440, 446, 631, 892, 1115, 1262, 1784, 2230, 2453, 2524, 3155, 4460, 4906, 5048, 6310, 6941, 8920, 9812, 12265, 12620, 13882, 19624, 24530, 25240, 27764, 34705, 49060, 55528, 69410, 98120, 138820, 140713, 277640, 281426, 562852, 703565, 1125704, 1407130, 1547843, 2814260, 3095686, 5628520, 6191372, 7739215, 12382744, 15478430, 30956860, 61913720]

約数ペア:

[(1, 61913720), (2, 30956860), (4, 15478430), (5, 12382744), (8, 7739215), (10, 6191372), (11, 5628520), (20, 3095686), (22, 2814260), (40, 1547843), (44, 1407130), (55, 1125704), (88, 703565), (110, 562852), (220, 281426), (223, 277640), (440, 140713), (446, 138820), (631, 98120), (892, 69410), (1115, 55528), (1262, 49060), (1784, 34705), (2230, 27764), (2453, 25240), (2524, 24530), (3155, 19624), (4460, 13882), (4906, 12620), (5048, 12265), (6310, 9812), (6941, 8920)]