1278899015

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{165983}}^1$

素因数の和:166078

約数の個数: 16

約数和(自身を含む): 1625315328

約数和(自身を除く): 346416313

約数列:

[1, 5, 23, 67, 115, 335, 1541, 7705, 165983, 829915, 3817609, 11120861, 19088045, 55604305, 255779803, 1278899015]

約数ペア:

[(1, 1278899015), (5, 255779803), (23, 55604305), (67, 19088045), (115, 11120861), (335, 3817609), (1541, 829915), (7705, 165983)]