20810200

素因数分解:

$2^3\times 5^2\times {\mathrm{67}}^1\times {\mathrm{1553}}^1$

素因数の和:1636

約数の個数: 48

約数和(自身を含む): 49137480

約数和(自身を除く): 28327280

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 67, 100, 134, 200, 268, 335, 536, 670, 1340, 1553, 1675, 2680, 3106, 3350, 6212, 6700, 7765, 12424, 13400, 15530, 31060, 38825, 62120, 77650, 104051, 155300, 208102, 310600, 416204, 520255, 832408, 1040510, 2081020, 2601275, 4162040, 5202550, 10405100, 20810200]

約数ペア:

[(1, 20810200), (2, 10405100), (4, 5202550), (5, 4162040), (8, 2601275), (10, 2081020), (20, 1040510), (25, 832408), (40, 520255), (50, 416204), (67, 310600), (100, 208102), (134, 155300), (200, 104051), (268, 77650), (335, 62120), (536, 38825), (670, 31060), (1340, 15530), (1553, 13400), (1675, 12424), (2680, 7765), (3106, 6700), (3350, 6212)]