77156620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1229}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 168204960

約数和(自身を除く): 91048340

約数列:

[1, 2, 4, 5, 10, 20, 43, 73, 86, 146, 172, 215, 292, 365, 430, 730, 860, 1229, 1460, 2458, 3139, 4916, 6145, 6278, 12290, 12556, 15695, 24580, 31390, 52847, 62780, 89717, 105694, 179434, 211388, 264235, 358868, 448585, 528470, 897170, 1056940, 1794340, 3857831, 7715662, 15431324, 19289155, 38578310, 77156620]

約数ペア:

[(1, 77156620), (2, 38578310), (4, 19289155), (5, 15431324), (10, 7715662), (20, 3857831), (43, 1794340), (73, 1056940), (86, 897170), (146, 528470), (172, 448585), (215, 358868), (292, 264235), (365, 211388), (430, 179434), (730, 105694), (860, 89717), (1229, 62780), (1460, 52847), (2458, 31390), (3139, 24580), (4916, 15695), (6145, 12556), (6278, 12290)]