42778125

素因数分解:

$3^4\times 5^5\times {\mathrm{13}}^2$

素因数の和:63

約数の個数: 90

約数和(自身を含む): 86490558

約数和(自身を除く): 43712433

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 81, 117, 125, 135, 169, 195, 225, 325, 351, 375, 405, 507, 585, 625, 675, 845, 975, 1053, 1125, 1521, 1625, 1755, 1875, 2025, 2535, 2925, 3125, 3375, 4225, 4563, 4875, 5265, 5625, 7605, 8125, 8775, 9375, 10125, 12675, 13689, 14625, 16875, 21125, 22815, 24375, 26325, 28125, 38025, 40625, 43875, 50625, 63375, 68445, 73125, 84375, 105625, 114075, 121875, 131625, 190125, 219375, 253125, 316875, 342225, 365625, 528125, 570375, 658125, 950625, 1096875, 1584375, 1711125, 2851875, 3290625, 4753125, 8555625, 14259375, 42778125]

約数ペア:

[(1, 42778125), (3, 14259375), (5, 8555625), (9, 4753125), (13, 3290625), (15, 2851875), (25, 1711125), (27, 1584375), (39, 1096875), (45, 950625), (65, 658125), (75, 570375), (81, 528125), (117, 365625), (125, 342225), (135, 316875), (169, 253125), (195, 219375), (225, 190125), (325, 131625), (351, 121875), (375, 114075), (405, 105625), (507, 84375), (585, 73125), (625, 68445), (675, 63375), (845, 50625), (975, 43875), (1053, 40625), (1125, 38025), (1521, 28125), (1625, 26325), (1755, 24375), (1875, 22815), (2025, 21125), (2535, 16875), (2925, 14625), (3125, 13689), (3375, 12675), (4225, 10125), (4563, 9375), (4875, 8775), (5265, 8125), (5625, 7605)]