645860172

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{1251667}}^1$

素因数の和:1251717

約数の個数: 24

約数和(自身を含む): 1542054976

約数和(自身を除く): 896194804

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 1251667, 2503334, 3755001, 5006668, 7510002, 15020004, 53821681, 107643362, 161465043, 215286724, 322930086, 645860172]

約数ペア:

[(1, 645860172), (2, 322930086), (3, 215286724), (4, 161465043), (6, 107643362), (12, 53821681), (43, 15020004), (86, 7510002), (129, 5006668), (172, 3755001), (258, 2503334), (516, 1251667)]