81734160.000000000

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{3557}}^1$

素因数の和:3621

約数の個数: 48

約数和(自身を含む): 375041664

約数和(自身を除く): 188690434

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 169, 310, 338, 403, 806, 845, 1690, 2015, 3557, 4030, 5239, 7114, 10478, 17785, 26195, 35570, 46241, 52390, 92482, 110267, 220534, 231205, 462410, 551335, 601133, 1102670, 1202266, 1433471, 2866942, 3005665, 6011330, 7167355, 14334710, 18635123, 37270246, 93175615, 186351230]

約数ペア:

[(1, 186351230), (2, 93175615), (5, 37270246), (10, 18635123), (13, 14334710), (26, 7167355), (31, 6011330), (62, 3005665), (65, 2866942), (130, 1433471), (155, 1202266), (169, 1102670), (310, 601133), (338, 551335), (403, 462410), (806, 231205), (845, 220534), (1690, 110267), (2015, 92482), (3557, 52390), (4030, 46241), (5239, 35570), (7114, 26195), (10478, 17785)]