28607740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{877}}^1$

素因数の和:1126

約数の個数: 48

約数和(自身を含む): 69031872

約数和(自身を除く): 40424132

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 233, 466, 877, 932, 1165, 1631, 1754, 2330, 3262, 3508, 4385, 4660, 6139, 6524, 8155, 8770, 12278, 16310, 17540, 24556, 30695, 32620, 61390, 122780, 204341, 408682, 817364, 1021705, 1430387, 2043410, 2860774, 4086820, 5721548, 7151935, 14303870, 28607740]

約数ペア:

[(1, 28607740), (2, 14303870), (4, 7151935), (5, 5721548), (7, 4086820), (10, 2860774), (14, 2043410), (20, 1430387), (28, 1021705), (35, 817364), (70, 408682), (140, 204341), (233, 122780), (466, 61390), (877, 32620), (932, 30695), (1165, 24556), (1631, 17540), (1754, 16310), (2330, 12278), (3262, 8770), (3508, 8155), (4385, 6524), (4660, 6139)]