51680900

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 118117440

約数和(自身を除く): 66436540

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 50, 58, 71, 100, 116, 142, 145, 251, 284, 290, 355, 502, 580, 710, 725, 1004, 1255, 1420, 1450, 1775, 2059, 2510, 2900, 3550, 4118, 5020, 6275, 7100, 7279, 8236, 10295, 12550, 14558, 17821, 20590, 25100, 29116, 35642, 36395, 41180, 51475, 71284, 72790, 89105, 102950, 145580, 178210, 181975, 205900, 356420, 363950, 445525, 516809, 727900, 891050, 1033618, 1782100, 2067236, 2584045, 5168090, 10336180, 12920225, 25840450, 51680900]

約数ペア:

[(1, 51680900), (2, 25840450), (4, 12920225), (5, 10336180), (10, 5168090), (20, 2584045), (25, 2067236), (29, 1782100), (50, 1033618), (58, 891050), (71, 727900), (100, 516809), (116, 445525), (142, 363950), (145, 356420), (251, 205900), (284, 181975), (290, 178210), (355, 145580), (502, 102950), (580, 89105), (710, 72790), (725, 71284), (1004, 51475), (1255, 41180), (1420, 36395), (1450, 35642), (1775, 29116), (2059, 25100), (2510, 20590), (2900, 17821), (3550, 14558), (4118, 12550), (5020, 10295), (6275, 8236), (7100, 7279)]