40288780

素因数分解:

$2^2\times 5^1\times 7^4\times {\mathrm{839}}^1$

素因数の和:876

約数の個数: 60

約数和(自身を含む): 98819280

約数和(自身を除く): 58530500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 839, 980, 1372, 1678, 1715, 2401, 3356, 3430, 4195, 4802, 5873, 6860, 8390, 9604, 11746, 12005, 16780, 23492, 24010, 29365, 41111, 48020, 58730, 82222, 117460, 164444, 205555, 287777, 411110, 575554, 822220, 1151108, 1438885, 2014439, 2877770, 4028878, 5755540, 8057756, 10072195, 20144390, 40288780]

約数ペア:

[(1, 40288780), (2, 20144390), (4, 10072195), (5, 8057756), (7, 5755540), (10, 4028878), (14, 2877770), (20, 2014439), (28, 1438885), (35, 1151108), (49, 822220), (70, 575554), (98, 411110), (140, 287777), (196, 205555), (245, 164444), (343, 117460), (490, 82222), (686, 58730), (839, 48020), (980, 41111), (1372, 29365), (1678, 24010), (1715, 23492), (2401, 16780), (3356, 12005), (3430, 11746), (4195, 9604), (4802, 8390), (5873, 6860)]