85410580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{397}}^1$

素因数の和:784

約数の個数: 48

約数和(自身を含む): 186149376

約数和(自身を除く): 100738796

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 347, 397, 620, 694, 794, 1388, 1588, 1735, 1985, 3470, 3970, 6940, 7940, 10757, 12307, 21514, 24614, 43028, 49228, 53785, 61535, 107570, 123070, 137759, 215140, 246140, 275518, 551036, 688795, 1377590, 2755180, 4270529, 8541058, 17082116, 21352645, 42705290, 85410580]

約数ペア:

[(1, 85410580), (2, 42705290), (4, 21352645), (5, 17082116), (10, 8541058), (20, 4270529), (31, 2755180), (62, 1377590), (124, 688795), (155, 551036), (310, 275518), (347, 246140), (397, 215140), (620, 137759), (694, 123070), (794, 107570), (1388, 61535), (1588, 53785), (1735, 49228), (1985, 43028), (3470, 24614), (3970, 21514), (6940, 12307), (7940, 10757)]