278399420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{36923}}^1$

素因数の和:36974

約数の個数: 48

約数和(自身を含む): 651339360

約数和(自身を除く): 372939940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 3770, 7540, 36923, 73846, 147692, 184615, 369230, 479999, 738460, 959998, 1070767, 1919996, 2141534, 2399995, 4283068, 4799990, 5353835, 9599980, 10707670, 13919971, 21415340, 27839942, 55679884, 69599855, 139199710, 278399420]

約数ペア:

[(1, 278399420), (2, 139199710), (4, 69599855), (5, 55679884), (10, 27839942), (13, 21415340), (20, 13919971), (26, 10707670), (29, 9599980), (52, 5353835), (58, 4799990), (65, 4283068), (116, 2399995), (130, 2141534), (145, 1919996), (260, 1070767), (290, 959998), (377, 738460), (580, 479999), (754, 369230), (1508, 184615), (1885, 147692), (3770, 73846), (7540, 36923)]