72709640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{34297}}^1$

素因数の和:34361

約数の個数: 32

約数和(自身を含む): 166688280

約数和(自身を除く): 93978640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 34297, 68594, 137188, 171485, 274376, 342970, 685940, 1371880, 1817741, 3635482, 7270964, 9088705, 14541928, 18177410, 36354820, 72709640]

約数ペア:

[(1, 72709640), (2, 36354820), (4, 18177410), (5, 14541928), (8, 9088705), (10, 7270964), (20, 3635482), (40, 1817741), (53, 1371880), (106, 685940), (212, 342970), (265, 274376), (424, 171485), (530, 137188), (1060, 68594), (2120, 34297)]