18781690

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2411}}^1$

素因数の和:2478

約数の個数: 32

約数和(自身を含む): 36469440

約数和(自身を除く): 17687750

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2411, 3895, 4822, 7790, 12055, 24110, 45809, 91618, 98851, 197702, 229045, 458090, 494255, 988510, 1878169, 3756338, 9390845, 18781690]

約数ペア:

[(1, 18781690), (2, 9390845), (5, 3756338), (10, 1878169), (19, 988510), (38, 494255), (41, 458090), (82, 229045), (95, 197702), (190, 98851), (205, 91618), (410, 45809), (779, 24110), (1558, 12055), (2411, 7790), (3895, 4822)]