18429680

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{2153}}^1$

素因数の和:2273

約数の個数: 40

約数和(自身を含む): 43269552

約数和(自身を除く): 24839872

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1070, 1712, 2140, 2153, 4280, 4306, 8560, 8612, 10765, 17224, 21530, 34448, 43060, 86120, 172240, 230371, 460742, 921484, 1151855, 1842968, 2303710, 3685936, 4607420, 9214840, 18429680]

約数ペア:

[(1, 18429680), (2, 9214840), (4, 4607420), (5, 3685936), (8, 2303710), (10, 1842968), (16, 1151855), (20, 921484), (40, 460742), (80, 230371), (107, 172240), (214, 86120), (428, 43060), (535, 34448), (856, 21530), (1070, 17224), (1712, 10765), (2140, 8612), (2153, 8560), (4280, 4306)]