81800030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{1901}}^1$

素因数の和:2252

約数の個数: 32

約数和(自身を含む): 159128928

約数和(自身を除く): 77328898

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 331, 662, 1655, 1901, 3310, 3802, 4303, 8606, 9505, 19010, 21515, 24713, 43030, 49426, 123565, 247130, 629231, 1258462, 3146155, 6292310, 8180003, 16360006, 40900015, 81800030]

約数ペア:

[(1, 81800030), (2, 40900015), (5, 16360006), (10, 8180003), (13, 6292310), (26, 3146155), (65, 1258462), (130, 629231), (331, 247130), (662, 123565), (1655, 49426), (1901, 43030), (3310, 24713), (3802, 21515), (4303, 19010), (8606, 9505)]