836780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 2069760

約数和(自身を除く): 1232980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 139, 140, 172, 215, 278, 301, 430, 556, 602, 695, 860, 973, 1204, 1390, 1505, 1946, 2780, 3010, 3892, 4865, 5977, 6020, 9730, 11954, 19460, 23908, 29885, 41839, 59770, 83678, 119540, 167356, 209195, 418390, 836780]

約数ペア:

[(1, 836780), (2, 418390), (4, 209195), (5, 167356), (7, 119540), (10, 83678), (14, 59770), (20, 41839), (28, 29885), (35, 23908), (43, 19460), (70, 11954), (86, 9730), (139, 6020), (140, 5977), (172, 4865), (215, 3892), (278, 3010), (301, 2780), (430, 1946), (556, 1505), (602, 1390), (695, 1204), (860, 973)]