51558800

素因数分解:

$2^4\times 5^2\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:996

約数の個数: 60

約数和(自身を含む): 124810836

約数和(自身を除く): 73252036

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 157, 200, 314, 400, 628, 785, 821, 1256, 1570, 1642, 2512, 3140, 3284, 3925, 4105, 6280, 6568, 7850, 8210, 12560, 13136, 15700, 16420, 20525, 31400, 32840, 41050, 62800, 65680, 82100, 128897, 164200, 257794, 328400, 515588, 644485, 1031176, 1288970, 2062352, 2577940, 3222425, 5155880, 6444850, 10311760, 12889700, 25779400, 51558800]

約数ペア:

[(1, 51558800), (2, 25779400), (4, 12889700), (5, 10311760), (8, 6444850), (10, 5155880), (16, 3222425), (20, 2577940), (25, 2062352), (40, 1288970), (50, 1031176), (80, 644485), (100, 515588), (157, 328400), (200, 257794), (314, 164200), (400, 128897), (628, 82100), (785, 65680), (821, 62800), (1256, 41050), (1570, 32840), (1642, 31400), (2512, 20525), (3140, 16420), (3284, 15700), (3925, 13136), (4105, 12560), (6280, 8210), (6568, 7850)]