78404170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{2729}}^1$

素因数の和:2779

約数の個数: 48

約数和(自身を含む): 161867160

約数和(自身を除く): 83462990

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 169, 170, 221, 338, 442, 845, 1105, 1690, 2210, 2729, 2873, 5458, 5746, 13645, 14365, 27290, 28730, 35477, 46393, 70954, 92786, 177385, 231965, 354770, 461201, 463930, 603109, 922402, 1206218, 2306005, 3015545, 4612010, 6031090, 7840417, 15680834, 39202085, 78404170]

約数ペア:

[(1, 78404170), (2, 39202085), (5, 15680834), (10, 7840417), (13, 6031090), (17, 4612010), (26, 3015545), (34, 2306005), (65, 1206218), (85, 922402), (130, 603109), (169, 463930), (170, 461201), (221, 354770), (338, 231965), (442, 177385), (845, 92786), (1105, 70954), (1690, 46393), (2210, 35477), (2729, 28730), (2873, 27290), (5458, 14365), (5746, 13645)]