7728375

素因数分解:

$3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:612

約数の個数: 32

約数和(自身を含む): 13231296

約数和(自身を除く): 5502921

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 125, 185, 375, 555, 557, 925, 1671, 2775, 2785, 4625, 8355, 13875, 13925, 20609, 41775, 61827, 69625, 103045, 208875, 309135, 515225, 1545675, 2576125, 7728375]

約数ペア:

[(1, 7728375), (3, 2576125), (5, 1545675), (15, 515225), (25, 309135), (37, 208875), (75, 103045), (111, 69625), (125, 61827), (185, 41775), (375, 20609), (555, 13925), (557, 13875), (925, 8355), (1671, 4625), (2775, 2785)]