7999875

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:581

約数の個数: 48

約数和(自身を含む): 15558816

約数和(自身を除く): 7558941

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 547, 585, 975, 1125, 1625, 1641, 2735, 2925, 4875, 4923, 7111, 8205, 13675, 14625, 21333, 24615, 35555, 41025, 63999, 68375, 106665, 123075, 177775, 205125, 319995, 533325, 615375, 888875, 1599975, 2666625, 7999875]

約数ペア:

[(1, 7999875), (3, 2666625), (5, 1599975), (9, 888875), (13, 615375), (15, 533325), (25, 319995), (39, 205125), (45, 177775), (65, 123075), (75, 106665), (117, 68375), (125, 63999), (195, 41025), (225, 35555), (325, 24615), (375, 21333), (547, 14625), (585, 13675), (975, 8205), (1125, 7111), (1625, 4923), (1641, 4875), (2735, 2925)]