121421560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{977}}^1$

素因数の和:1240

約数の個数: 64

約数和(自身を含む): 295747200

約数和(自身を除く): 174325640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 239, 260, 478, 520, 956, 977, 1195, 1912, 1954, 2390, 3107, 3908, 4780, 4885, 6214, 7816, 9560, 9770, 12428, 12701, 15535, 19540, 24856, 25402, 31070, 39080, 50804, 62140, 63505, 101608, 124280, 127010, 233503, 254020, 467006, 508040, 934012, 1167515, 1868024, 2335030, 3035539, 4670060, 6071078, 9340120, 12142156, 15177695, 24284312, 30355390, 60710780, 121421560]

約数ペア:

[(1, 121421560), (2, 60710780), (4, 30355390), (5, 24284312), (8, 15177695), (10, 12142156), (13, 9340120), (20, 6071078), (26, 4670060), (40, 3035539), (52, 2335030), (65, 1868024), (104, 1167515), (130, 934012), (239, 508040), (260, 467006), (478, 254020), (520, 233503), (956, 127010), (977, 124280), (1195, 101608), (1912, 63505), (1954, 62140), (2390, 50804), (3107, 39080), (3908, 31070), (4780, 25402), (4885, 24856), (6214, 19540), (7816, 15535), (9560, 12701), (9770, 12428)]