421897072

素因数分解:

$2^4\times {\mathrm{659}}^1\times {\mathrm{40013}}^1$

素因数の和:40680

約数の個数: 20

約数和(自身を含む): 818686440

約数和(自身を除く): 396789368

約数列:

[1, 2, 4, 8, 16, 659, 1318, 2636, 5272, 10544, 40013, 80026, 160052, 320104, 640208, 26368567, 52737134, 105474268, 210948536, 421897072]

約数ペア:

[(1, 421897072), (2, 210948536), (4, 105474268), (8, 52737134), (16, 26368567), (659, 640208), (1318, 320104), (2636, 160052), (5272, 80026), (10544, 40013)]