649610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:302

約数の個数: 32

約数和(自身を含む): 1330560

約数和(自身を除く): 680950

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 263, 494, 526, 1235, 1315, 2470, 2630, 3419, 4997, 6838, 9994, 17095, 24985, 34190, 49970, 64961, 129922, 324805, 649610]

約数ペア:

[(1, 649610), (2, 324805), (5, 129922), (10, 64961), (13, 49970), (19, 34190), (26, 24985), (38, 17095), (65, 9994), (95, 6838), (130, 4997), (190, 3419), (247, 2630), (263, 2470), (494, 1315), (526, 1235)]