30788780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{401}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 70912800

約数和(自身を除く): 40124020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 349, 401, 698, 802, 1396, 1604, 1745, 2005, 3490, 3839, 4010, 4411, 6980, 7678, 8020, 8822, 15356, 17644, 19195, 22055, 38390, 44110, 76780, 88220, 139949, 279898, 559796, 699745, 1399490, 1539439, 2798980, 3078878, 6157756, 7697195, 15394390, 30788780]

約数ペア:

[(1, 30788780), (2, 15394390), (4, 7697195), (5, 6157756), (10, 3078878), (11, 2798980), (20, 1539439), (22, 1399490), (44, 699745), (55, 559796), (110, 279898), (220, 139949), (349, 88220), (401, 76780), (698, 44110), (802, 38390), (1396, 22055), (1604, 19195), (1745, 17644), (2005, 15356), (3490, 8822), (3839, 8020), (4010, 7678), (4411, 6980)]