40651640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{601}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 97524000

約数和(自身を除く): 56872360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 601, 712, 760, 890, 1202, 1691, 1780, 2404, 3005, 3382, 3560, 4808, 6010, 6764, 8455, 11419, 12020, 13528, 16910, 22838, 24040, 33820, 45676, 53489, 57095, 67640, 91352, 106978, 114190, 213956, 228380, 267445, 427912, 456760, 534890, 1016291, 1069780, 2032582, 2139560, 4065164, 5081455, 8130328, 10162910, 20325820, 40651640]

約数ペア:

[(1, 40651640), (2, 20325820), (4, 10162910), (5, 8130328), (8, 5081455), (10, 4065164), (19, 2139560), (20, 2032582), (38, 1069780), (40, 1016291), (76, 534890), (89, 456760), (95, 427912), (152, 267445), (178, 228380), (190, 213956), (356, 114190), (380, 106978), (445, 91352), (601, 67640), (712, 57095), (760, 53489), (890, 45676), (1202, 33820), (1691, 24040), (1780, 22838), (2404, 16910), (3005, 13528), (3382, 12020), (3560, 11419), (4808, 8455), (6010, 6764)]