20020575

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 34918400

約数和(自身を除く): 14897825

約数列:

[1, 3, 5, 15, 25, 31, 75, 79, 93, 109, 155, 237, 327, 395, 465, 545, 775, 1185, 1635, 1975, 2325, 2449, 2725, 3379, 5925, 7347, 8175, 8611, 10137, 12245, 16895, 25833, 36735, 43055, 50685, 61225, 84475, 129165, 183675, 215275, 253425, 266941, 645825, 800823, 1334705, 4004115, 6673525, 20020575]

約数ペア:

[(1, 20020575), (3, 6673525), (5, 4004115), (15, 1334705), (25, 800823), (31, 645825), (75, 266941), (79, 253425), (93, 215275), (109, 183675), (155, 129165), (237, 84475), (327, 61225), (395, 50685), (465, 43055), (545, 36735), (775, 25833), (1185, 16895), (1635, 12245), (1975, 10137), (2325, 8611), (2449, 8175), (2725, 7347), (3379, 5925)]