28949304820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{823}}^1\times {\mathrm{12653}}^1$

素因数の和:13624

約数の個数: 48

約数和(自身を含む): 61310148480

約数和(自身を除く): 32360843660

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 823, 1390, 1646, 2780, 3292, 4115, 8230, 12653, 16460, 25306, 50612, 63265, 114397, 126530, 228794, 253060, 457588, 571985, 1143970, 1758767, 2287940, 3517534, 7035068, 8793835, 10413419, 17587670, 20826838, 35175340, 41653676, 52067095, 104134190, 208268380, 1447465241, 2894930482, 5789860964, 7237326205, 14474652410, 28949304820]

約数ペア:

[(1, 28949304820), (2, 14474652410), (4, 7237326205), (5, 5789860964), (10, 2894930482), (20, 1447465241), (139, 208268380), (278, 104134190), (556, 52067095), (695, 41653676), (823, 35175340), (1390, 20826838), (1646, 17587670), (2780, 10413419), (3292, 8793835), (4115, 7035068), (8230, 3517534), (12653, 2287940), (16460, 1758767), (25306, 1143970), (50612, 571985), (63265, 457588), (114397, 253060), (126530, 228794)]