18782320

素因数分解:

$2^4\times 5^1\times {\mathrm{383}}^1\times {\mathrm{613}}^1$

素因数の和:1009

約数の個数: 40

約数和(自身を含む): 43854336

約数和(自身を除く): 25072016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 383, 613, 766, 1226, 1532, 1915, 2452, 3064, 3065, 3830, 4904, 6128, 6130, 7660, 9808, 12260, 15320, 24520, 30640, 49040, 234779, 469558, 939116, 1173895, 1878232, 2347790, 3756464, 4695580, 9391160, 18782320]

約数ペア:

[(1, 18782320), (2, 9391160), (4, 4695580), (5, 3756464), (8, 2347790), (10, 1878232), (16, 1173895), (20, 939116), (40, 469558), (80, 234779), (383, 49040), (613, 30640), (766, 24520), (1226, 15320), (1532, 12260), (1915, 9808), (2452, 7660), (3064, 6130), (3065, 6128), (3830, 4904)]