20770875

素因数分解:

$3^2\times 5^3\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 48

約数和(自身を含む): 38532000

約数和(自身を除く): 17761125

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 125, 185, 225, 333, 375, 499, 555, 925, 1125, 1497, 1665, 2495, 2775, 4491, 4625, 7485, 8325, 12475, 13875, 18463, 22455, 37425, 41625, 55389, 62375, 92315, 112275, 166167, 187125, 276945, 461575, 561375, 830835, 1384725, 2307875, 4154175, 6923625, 20770875]

約数ペア:

[(1, 20770875), (3, 6923625), (5, 4154175), (9, 2307875), (15, 1384725), (25, 830835), (37, 561375), (45, 461575), (75, 276945), (111, 187125), (125, 166167), (185, 112275), (225, 92315), (333, 62375), (375, 55389), (499, 41625), (555, 37425), (925, 22455), (1125, 18463), (1497, 13875), (1665, 12475), (2495, 8325), (2775, 7485), (4491, 4625)]