20080575

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:509

約数の個数: 48

約数和(自身を含む): 37497600

約数和(自身を除く): 17417025

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 213, 225, 355, 419, 639, 675, 1065, 1257, 1775, 1917, 2095, 3195, 3771, 5325, 6285, 9585, 10475, 11313, 15975, 18855, 29749, 31425, 47925, 56565, 89247, 94275, 148745, 267741, 282825, 446235, 743725, 803223, 1338705, 2231175, 4016115, 6693525, 20080575]

約数ペア:

[(1, 20080575), (3, 6693525), (5, 4016115), (9, 2231175), (15, 1338705), (25, 803223), (27, 743725), (45, 446235), (71, 282825), (75, 267741), (135, 148745), (213, 94275), (225, 89247), (355, 56565), (419, 47925), (639, 31425), (675, 29749), (1065, 18855), (1257, 15975), (1775, 11313), (1917, 10475), (2095, 9585), (3195, 6285), (3771, 5325)]