389631460

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{2909}}^1$

素因数の和:3136

約数の個数: 48

約数和(自身を含む): 845273520

約数和(自身を除く): 455642060

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 181, 185, 362, 370, 724, 740, 905, 1810, 2909, 3620, 5818, 6697, 11636, 13394, 14545, 26788, 29090, 33485, 58180, 66970, 107633, 133940, 215266, 430532, 526529, 538165, 1053058, 1076330, 2106116, 2152660, 2632645, 5265290, 10530580, 19481573, 38963146, 77926292, 97407865, 194815730, 389631460]

約数ペア:

[(1, 389631460), (2, 194815730), (4, 97407865), (5, 77926292), (10, 38963146), (20, 19481573), (37, 10530580), (74, 5265290), (148, 2632645), (181, 2152660), (185, 2106116), (362, 1076330), (370, 1053058), (724, 538165), (740, 526529), (905, 430532), (1810, 215266), (2909, 133940), (3620, 107633), (5818, 66970), (6697, 58180), (11636, 33485), (13394, 29090), (14545, 26788)]