28129840

素因数分解:

$2^4\times 5^1\times {\mathrm{227}}^1\times {\mathrm{1549}}^1$

素因数の和:1789

約数の個数: 40

約数和(自身を含む): 65732400

約数和(自身を除く): 37602560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 227, 454, 908, 1135, 1549, 1816, 2270, 3098, 3632, 4540, 6196, 7745, 9080, 12392, 15490, 18160, 24784, 30980, 61960, 123920, 351623, 703246, 1406492, 1758115, 2812984, 3516230, 5625968, 7032460, 14064920, 28129840]

約数ペア:

[(1, 28129840), (2, 14064920), (4, 7032460), (5, 5625968), (8, 3516230), (10, 2812984), (16, 1758115), (20, 1406492), (40, 703246), (80, 351623), (227, 123920), (454, 61960), (908, 30980), (1135, 24784), (1549, 18160), (1816, 15490), (2270, 12392), (3098, 9080), (3632, 7745), (4540, 6196)]