397327940

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1\times {\mathrm{823}}^1$

素因数の和:1172

約数の個数: 48

約数和(自身を含む): 847203840

約数和(自身を除く): 449875900

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 239, 404, 478, 505, 823, 956, 1010, 1195, 1646, 2020, 2390, 3292, 4115, 4780, 8230, 16460, 24139, 48278, 83123, 96556, 120695, 166246, 196697, 241390, 332492, 393394, 415615, 482780, 786788, 831230, 983485, 1662460, 1966970, 3933940, 19866397, 39732794, 79465588, 99331985, 198663970, 397327940]

約数ペア:

[(1, 397327940), (2, 198663970), (4, 99331985), (5, 79465588), (10, 39732794), (20, 19866397), (101, 3933940), (202, 1966970), (239, 1662460), (404, 983485), (478, 831230), (505, 786788), (823, 482780), (956, 415615), (1010, 393394), (1195, 332492), (1646, 241390), (2020, 196697), (2390, 166246), (3292, 120695), (4115, 96556), (4780, 83123), (8230, 48278), (16460, 24139)]