813804920

素因数分解:

$2^3\times 5^1\times {\mathrm{701}}^1\times {\mathrm{29023}}^1$

素因数の和:29735

約数の個数: 32

約数和(自身を含む): 1833736320

約数和(自身を除く): 1019931400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 701, 1402, 2804, 3505, 5608, 7010, 14020, 28040, 29023, 58046, 116092, 145115, 232184, 290230, 580460, 1160920, 20345123, 40690246, 81380492, 101725615, 162760984, 203451230, 406902460, 813804920]

約数ペア:

[(1, 813804920), (2, 406902460), (4, 203451230), (5, 162760984), (8, 101725615), (10, 81380492), (20, 40690246), (40, 20345123), (701, 1160920), (1402, 580460), (2804, 290230), (3505, 232184), (5608, 145115), (7010, 116092), (14020, 58046), (28040, 29023)]