428860

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{523}}^1$

素因数の和:573

約数の個数: 24

約数和(自身を含む): 924336

約数和(自身を除く): 495476

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 523, 820, 1046, 2092, 2615, 5230, 10460, 21443, 42886, 85772, 107215, 214430, 428860]

約数ペア:

[(1, 428860), (2, 214430), (4, 107215), (5, 85772), (10, 42886), (20, 21443), (41, 10460), (82, 5230), (164, 2615), (205, 2092), (410, 1046), (523, 820)]