641954

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1$

素因数の和:337

約数の個数: 16

約数和(自身を含む): 1036800

約数和(自身を除く): 394846

約数列:

[1, 2, 17, 34, 79, 158, 239, 478, 1343, 2686, 4063, 8126, 18881, 37762, 320977, 641954]

約数ペア:

[(1, 641954), (2, 320977), (17, 37762), (34, 18881), (79, 8126), (158, 4063), (239, 2686), (478, 1343)]