28244860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{881}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 68160960

約数和(自身を除く): 39916100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 881, 916, 1145, 1603, 1762, 2290, 3206, 3524, 4405, 4580, 6167, 6412, 8015, 8810, 12334, 16030, 17620, 24668, 30835, 32060, 61670, 123340, 201749, 403498, 806996, 1008745, 1412243, 2017490, 2824486, 4034980, 5648972, 7061215, 14122430, 28244860]

約数ペア:

[(1, 28244860), (2, 14122430), (4, 7061215), (5, 5648972), (7, 4034980), (10, 2824486), (14, 2017490), (20, 1412243), (28, 1008745), (35, 806996), (70, 403498), (140, 201749), (229, 123340), (458, 61670), (881, 32060), (916, 30835), (1145, 24668), (1603, 17620), (1762, 16030), (2290, 12334), (3206, 8810), (3524, 8015), (4405, 6412), (4580, 6167)]