63720400

素因数分解:

$2^4\times 5^2\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:920

約数の個数: 60

約数和(自身を含む): 153956044

約数和(自身を除く): 90235644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 241, 400, 482, 661, 964, 1205, 1322, 1928, 2410, 2644, 3305, 3856, 4820, 5288, 6025, 6610, 9640, 10576, 12050, 13220, 16525, 19280, 24100, 26440, 33050, 48200, 52880, 66100, 96400, 132200, 159301, 264400, 318602, 637204, 796505, 1274408, 1593010, 2548816, 3186020, 3982525, 6372040, 7965050, 12744080, 15930100, 31860200, 63720400]

約数ペア:

[(1, 63720400), (2, 31860200), (4, 15930100), (5, 12744080), (8, 7965050), (10, 6372040), (16, 3982525), (20, 3186020), (25, 2548816), (40, 1593010), (50, 1274408), (80, 796505), (100, 637204), (200, 318602), (241, 264400), (400, 159301), (482, 132200), (661, 96400), (964, 66100), (1205, 52880), (1322, 48200), (1928, 33050), (2410, 26440), (2644, 24100), (3305, 19280), (3856, 16525), (4820, 13220), (5288, 12050), (6025, 10576), (6610, 9640)]