20565937516

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{787}}^1\times {\mathrm{18097}}^1$

素因数の和:18926

約数の個数: 36

約数和(自身を含む): 38034684408

約数和(自身を除く): 17468746892

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 787, 1444, 1574, 3148, 14953, 18097, 29906, 36194, 59812, 72388, 284107, 343843, 568214, 687686, 1136428, 1375372, 6533017, 13066034, 14242339, 26132068, 28484678, 56969356, 270604441, 541208882, 1082417764, 5141484379, 10282968758, 20565937516]

約数ペア:

[(1, 20565937516), (2, 10282968758), (4, 5141484379), (19, 1082417764), (38, 541208882), (76, 270604441), (361, 56969356), (722, 28484678), (787, 26132068), (1444, 14242339), (1574, 13066034), (3148, 6533017), (14953, 1375372), (18097, 1136428), (29906, 687686), (36194, 568214), (59812, 343843), (72388, 284107)]