817604090

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{389}}^1\times {\mathrm{2081}}^1$

素因数の和:2578

約数の個数: 32

約数和(自身を含む): 1490795280

約数和(自身を除く): 673191190

約数列:

[1, 2, 5, 10, 101, 202, 389, 505, 778, 1010, 1945, 2081, 3890, 4162, 10405, 20810, 39289, 78578, 196445, 210181, 392890, 420362, 809509, 1050905, 1619018, 2101810, 4047545, 8095090, 81760409, 163520818, 408802045, 817604090]

約数ペア:

[(1, 817604090), (2, 408802045), (5, 163520818), (10, 81760409), (101, 8095090), (202, 4047545), (389, 2101810), (505, 1619018), (778, 1050905), (1010, 809509), (1945, 420362), (2081, 392890), (3890, 210181), (4162, 196445), (10405, 78578), (20810, 39289)]