1987555.00000000

素因数分解:

$3^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1$

素因数の和:173

約数の個数: 80

約数和(自身を含む): 57731520

約数和(自身を除く): 28993395

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 125, 131, 135, 195, 225, 325, 351, 375, 393, 585, 625, 655, 675, 975, 1125, 1179, 1625, 1703, 1755, 1875, 1965, 2925, 3275, 3375, 3537, 4875, 5109, 5625, 5895, 8125, 8515, 8775, 9825, 14625, 15327, 16375, 16875, 17685, 24375, 25545, 29475, 42575, 43875, 45981, 49125, 73125, 76635, 81875, 88425, 127725, 147375, 212875, 219375, 229905, 245625, 383175, 442125, 638625, 736875, 1064375, 1149525, 1915875, 2210625, 3193125, 5747625, 9579375, 28738125]

約数ペア:

[(1, 28738125), (3, 9579375), (5, 5747625), (9, 3193125), (13, 2210625), (15, 1915875), (25, 1149525), (27, 1064375), (39, 736875), (45, 638625), (65, 442125), (75, 383175), (117, 245625), (125, 229905), (131, 219375), (135, 212875), (195, 147375), (225, 127725), (325, 88425), (351, 81875), (375, 76635), (393, 73125), (585, 49125), (625, 45981), (655, 43875), (675, 42575), (975, 29475), (1125, 25545), (1179, 24375), (1625, 17685), (1703, 16875), (1755, 16375), (1875, 15327), (1965, 14625), (2925, 9825), (3275, 8775), (3375, 8515), (3537, 8125), (4875, 5895), (5109, 5625)]