12899440

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{421}}^1$

素因数の和:817

約数の個数: 40

約数和(自身を含む): 30140928

約数和(自身を除く): 17241488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 421, 766, 842, 1532, 1684, 1915, 2105, 3064, 3368, 3830, 4210, 6128, 6736, 7660, 8420, 15320, 16840, 30640, 33680, 161243, 322486, 644972, 806215, 1289944, 1612430, 2579888, 3224860, 6449720, 12899440]

約数ペア:

[(1, 12899440), (2, 6449720), (4, 3224860), (5, 2579888), (8, 1612430), (10, 1289944), (16, 806215), (20, 644972), (40, 322486), (80, 161243), (383, 33680), (421, 30640), (766, 16840), (842, 15320), (1532, 8420), (1684, 7660), (1915, 6736), (2105, 6128), (3064, 4210), (3368, 3830)]