28753875

素因数分解:

$3^2\times 5^3\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:501

約数の個数: 48

約数和(自身を含む): 52809120

約数和(自身を除く): 24055245

約数列:

[1, 3, 5, 9, 15, 25, 45, 61, 75, 125, 183, 225, 305, 375, 419, 549, 915, 1125, 1257, 1525, 2095, 2745, 3771, 4575, 6285, 7625, 10475, 13725, 18855, 22875, 25559, 31425, 52375, 68625, 76677, 94275, 127795, 157125, 230031, 383385, 471375, 638975, 1150155, 1916925, 3194875, 5750775, 9584625, 28753875]

約数ペア:

[(1, 28753875), (3, 9584625), (5, 5750775), (9, 3194875), (15, 1916925), (25, 1150155), (45, 638975), (61, 471375), (75, 383385), (125, 230031), (183, 157125), (225, 127795), (305, 94275), (375, 76677), (419, 68625), (549, 52375), (915, 31425), (1125, 25559), (1257, 22875), (1525, 18855), (2095, 13725), (2745, 10475), (3771, 7625), (4575, 6285)]