201189475

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 275473440

約数和(自身を除く): 74283965

約数列:

[1, 5, 17, 25, 43, 85, 101, 109, 215, 425, 505, 545, 731, 1075, 1717, 1853, 2525, 2725, 3655, 4343, 4687, 8585, 9265, 11009, 18275, 21715, 23435, 42925, 46325, 55045, 73831, 79679, 108575, 117175, 187153, 275225, 369155, 398395, 473387, 935765, 1845775, 1991975, 2366935, 4678825, 8047579, 11834675, 40237895, 201189475]

約数ペア:

[(1, 201189475), (5, 40237895), (17, 11834675), (25, 8047579), (43, 4678825), (85, 2366935), (101, 1991975), (109, 1845775), (215, 935765), (425, 473387), (505, 398395), (545, 369155), (731, 275225), (1075, 187153), (1717, 117175), (1853, 108575), (2525, 79679), (2725, 73831), (3655, 55045), (4343, 46325), (4687, 42925), (8585, 23435), (9265, 21715), (11009, 18275)]