79728280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{569}}^1$

素因数の和:724

約数の個数: 64

約数和(自身を含む): 187142400

約数和(自身を除く): 107414120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 113, 124, 155, 226, 248, 310, 452, 565, 569, 620, 904, 1130, 1138, 1240, 2260, 2276, 2845, 3503, 4520, 4552, 5690, 7006, 11380, 14012, 17515, 17639, 22760, 28024, 35030, 35278, 64297, 70060, 70556, 88195, 128594, 140120, 141112, 176390, 257188, 321485, 352780, 514376, 642970, 705560, 1285940, 1993207, 2571880, 3986414, 7972828, 9966035, 15945656, 19932070, 39864140, 79728280]

約数ペア:

[(1, 79728280), (2, 39864140), (4, 19932070), (5, 15945656), (8, 9966035), (10, 7972828), (20, 3986414), (31, 2571880), (40, 1993207), (62, 1285940), (113, 705560), (124, 642970), (155, 514376), (226, 352780), (248, 321485), (310, 257188), (452, 176390), (565, 141112), (569, 140120), (620, 128594), (904, 88195), (1130, 70556), (1138, 70060), (1240, 64297), (2260, 35278), (2276, 35030), (2845, 28024), (3503, 22760), (4520, 17639), (4552, 17515), (5690, 14012), (7006, 11380)]