12198920

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{1871}}^1$

素因数の和:2045

約数の個数: 32

約数和(自身を含む): 27630720

約数和(自身を除く): 15431800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 1871, 3260, 3742, 6520, 7484, 9355, 14968, 18710, 37420, 74840, 304973, 609946, 1219892, 1524865, 2439784, 3049730, 6099460, 12198920]

約数ペア:

[(1, 12198920), (2, 6099460), (4, 3049730), (5, 2439784), (8, 1524865), (10, 1219892), (20, 609946), (40, 304973), (163, 74840), (326, 37420), (652, 18710), (815, 14968), (1304, 9355), (1630, 7484), (1871, 6520), (3260, 3742)]