28173375

素因数分解:

$3^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 51592320

約数和(自身を除く): 23418945

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 79, 125, 225, 237, 317, 375, 395, 711, 951, 1125, 1185, 1585, 1975, 2853, 3555, 4755, 5925, 7925, 9875, 14265, 17775, 23775, 25043, 29625, 39625, 71325, 75129, 88875, 118875, 125215, 225387, 356625, 375645, 626075, 1126935, 1878225, 3130375, 5634675, 9391125, 28173375]

約数ペア:

[(1, 28173375), (3, 9391125), (5, 5634675), (9, 3130375), (15, 1878225), (25, 1126935), (45, 626075), (75, 375645), (79, 356625), (125, 225387), (225, 125215), (237, 118875), (317, 88875), (375, 75129), (395, 71325), (711, 39625), (951, 29625), (1125, 25043), (1185, 23775), (1585, 17775), (1975, 14265), (2853, 9875), (3555, 7925), (4755, 5925)]