15421875

素因数分解:

$3^1\times 5^6\times 7^1\times {\mathrm{47}}^1$

素因数の和:87

約数の個数: 56

約数和(自身を含む): 29999616

約数和(自身を除く): 14577741

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 47, 75, 105, 125, 141, 175, 235, 329, 375, 525, 625, 705, 875, 987, 1175, 1645, 1875, 2625, 3125, 3525, 4375, 4935, 5875, 8225, 9375, 13125, 15625, 17625, 21875, 24675, 29375, 41125, 46875, 65625, 88125, 109375, 123375, 146875, 205625, 328125, 440625, 616875, 734375, 1028125, 2203125, 3084375, 5140625, 15421875]

約数ペア:

[(1, 15421875), (3, 5140625), (5, 3084375), (7, 2203125), (15, 1028125), (21, 734375), (25, 616875), (35, 440625), (47, 328125), (75, 205625), (105, 146875), (125, 123375), (141, 109375), (175, 88125), (235, 65625), (329, 46875), (375, 41125), (525, 29375), (625, 24675), (705, 21875), (875, 17625), (987, 15625), (1175, 13125), (1645, 9375), (1875, 8225), (2625, 5875), (3125, 4935), (3525, 4375)]