85719640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2\times {\mathrm{61}}^1$

素因数の和:177

約数の個数: 96

約数和(自身を含む): 211258800

約数和(自身を除く): 125539160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 43, 61, 76, 86, 95, 122, 152, 172, 190, 215, 244, 305, 344, 380, 430, 488, 610, 760, 817, 860, 1159, 1220, 1634, 1720, 1849, 2318, 2440, 2623, 3268, 3698, 4085, 4636, 5246, 5795, 6536, 7396, 8170, 9245, 9272, 10492, 11590, 13115, 14792, 16340, 18490, 20984, 23180, 26230, 32680, 35131, 36980, 46360, 49837, 52460, 70262, 73960, 99674, 104920, 112789, 140524, 175655, 199348, 225578, 249185, 281048, 351310, 398696, 451156, 498370, 563945, 702620, 902312, 996740, 1127890, 1405240, 1993480, 2142991, 2255780, 4285982, 4511560, 8571964, 10714955, 17143928, 21429910, 42859820, 85719640]

約数ペア:

[(1, 85719640), (2, 42859820), (4, 21429910), (5, 17143928), (8, 10714955), (10, 8571964), (19, 4511560), (20, 4285982), (38, 2255780), (40, 2142991), (43, 1993480), (61, 1405240), (76, 1127890), (86, 996740), (95, 902312), (122, 702620), (152, 563945), (172, 498370), (190, 451156), (215, 398696), (244, 351310), (305, 281048), (344, 249185), (380, 225578), (430, 199348), (488, 175655), (610, 140524), (760, 112789), (817, 104920), (860, 99674), (1159, 73960), (1220, 70262), (1634, 52460), (1720, 49837), (1849, 46360), (2318, 36980), (2440, 35131), (2623, 32680), (3268, 26230), (3698, 23180), (4085, 20984), (4636, 18490), (5246, 16340), (5795, 14792), (6536, 13115), (7396, 11590), (8170, 10492), (9245, 9272)]