172315240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{70621}}^1$

素因数の和:70693

約数の個数: 32

約数和(自身を含む): 394070760

約数和(自身を除く): 221755520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 70621, 141242, 282484, 353105, 564968, 706210, 1412420, 2824840, 4307881, 8615762, 17231524, 21539405, 34463048, 43078810, 86157620, 172315240]

約数ペア:

[(1, 172315240), (2, 86157620), (4, 43078810), (5, 34463048), (8, 21539405), (10, 17231524), (20, 8615762), (40, 4307881), (61, 2824840), (122, 1412420), (244, 706210), (305, 564968), (488, 353105), (610, 282484), (1220, 141242), (2440, 70621)]