20138361680

素因数分解:

$2^4\times 5^1\times {\mathrm{577}}^1\times {\mathrm{436273}}^1$

素因数の和:436863

約数の個数: 40

約数和(自身を含む): 46902945192

約数和(自身を除く): 26764583512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 577, 1154, 2308, 2885, 4616, 5770, 9232, 11540, 23080, 46160, 436273, 872546, 1745092, 2181365, 3490184, 4362730, 6980368, 8725460, 17450920, 34901840, 251729521, 503459042, 1006918084, 1258647605, 2013836168, 2517295210, 4027672336, 5034590420, 10069180840, 20138361680]

約数ペア:

[(1, 20138361680), (2, 10069180840), (4, 5034590420), (5, 4027672336), (8, 2517295210), (10, 2013836168), (16, 1258647605), (20, 1006918084), (40, 503459042), (80, 251729521), (577, 34901840), (1154, 17450920), (2308, 8725460), (2885, 6980368), (4616, 4362730), (5770, 3490184), (9232, 2181365), (11540, 1745092), (23080, 872546), (46160, 436273)]