19461880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11867}}^1$

素因数の和:11919

約数の個数: 32

約数和(自身を含む): 44861040

約数和(自身を除く): 25399160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 11867, 23734, 47468, 59335, 94936, 118670, 237340, 474680, 486547, 973094, 1946188, 2432735, 3892376, 4865470, 9730940, 19461880]

約数ペア:

[(1, 19461880), (2, 9730940), (4, 4865470), (5, 3892376), (8, 2432735), (10, 1946188), (20, 973094), (40, 486547), (41, 474680), (82, 237340), (164, 118670), (205, 94936), (328, 59335), (410, 47468), (820, 23734), (1640, 11867)]