31078125

素因数分解:

$3^2\times 5^6\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:66

約数の個数: 84

約数和(自身を含む): 63983556

約数和(自身を除く): 32905431

約数列:

[1, 3, 5, 9, 13, 15, 17, 25, 39, 45, 51, 65, 75, 85, 117, 125, 153, 195, 221, 225, 255, 325, 375, 425, 585, 625, 663, 765, 975, 1105, 1125, 1275, 1625, 1875, 1989, 2125, 2925, 3125, 3315, 3825, 4875, 5525, 5625, 6375, 8125, 9375, 9945, 10625, 14625, 15625, 16575, 19125, 24375, 27625, 28125, 31875, 40625, 46875, 49725, 53125, 73125, 82875, 95625, 121875, 138125, 140625, 159375, 203125, 248625, 265625, 365625, 414375, 478125, 609375, 690625, 796875, 1243125, 1828125, 2071875, 2390625, 3453125, 6215625, 10359375, 31078125]

約数ペア:

[(1, 31078125), (3, 10359375), (5, 6215625), (9, 3453125), (13, 2390625), (15, 2071875), (17, 1828125), (25, 1243125), (39, 796875), (45, 690625), (51, 609375), (65, 478125), (75, 414375), (85, 365625), (117, 265625), (125, 248625), (153, 203125), (195, 159375), (221, 140625), (225, 138125), (255, 121875), (325, 95625), (375, 82875), (425, 73125), (585, 53125), (625, 49725), (663, 46875), (765, 40625), (975, 31875), (1105, 28125), (1125, 27625), (1275, 24375), (1625, 19125), (1875, 16575), (1989, 15625), (2125, 14625), (2925, 10625), (3125, 9945), (3315, 9375), (3825, 8125), (4875, 6375), (5525, 5625)]