20373975

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 39616512

約数和(自身を除く): 19242537

約数列:

[1, 3, 5, 9, 15, 23, 25, 31, 45, 69, 75, 93, 115, 127, 155, 207, 225, 279, 345, 381, 465, 575, 635, 713, 775, 1035, 1143, 1395, 1725, 1905, 2139, 2325, 2921, 3175, 3565, 3937, 5175, 5715, 6417, 6975, 8763, 9525, 10695, 11811, 14605, 17825, 19685, 26289, 28575, 32085, 35433, 43815, 53475, 59055, 73025, 90551, 98425, 131445, 160425, 177165, 219075, 271653, 295275, 452755, 657225, 814959, 885825, 1358265, 2263775, 4074795, 6791325, 20373975]

約数ペア:

[(1, 20373975), (3, 6791325), (5, 4074795), (9, 2263775), (15, 1358265), (23, 885825), (25, 814959), (31, 657225), (45, 452755), (69, 295275), (75, 271653), (93, 219075), (115, 177165), (127, 160425), (155, 131445), (207, 98425), (225, 90551), (279, 73025), (345, 59055), (381, 53475), (465, 43815), (575, 35433), (635, 32085), (713, 28575), (775, 26289), (1035, 19685), (1143, 17825), (1395, 14605), (1725, 11811), (1905, 10695), (2139, 9525), (2325, 8763), (2921, 6975), (3175, 6417), (3565, 5715), (3937, 5175)]