219631490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{4013}}^1$

素因数の和:4454

約数の個数: 32

約数和(自身を含む): 426864816

約数和(自身を除く): 207233326

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 421, 842, 2105, 4013, 4210, 5473, 8026, 10946, 20065, 27365, 40130, 52169, 54730, 104338, 260845, 521690, 1689473, 3378946, 8447365, 16894730, 21963149, 43926298, 109815745, 219631490]

約数ペア:

[(1, 219631490), (2, 109815745), (5, 43926298), (10, 21963149), (13, 16894730), (26, 8447365), (65, 3378946), (130, 1689473), (421, 521690), (842, 260845), (2105, 104338), (4013, 54730), (4210, 52169), (5473, 40130), (8026, 27365), (10946, 20065)]