20273175

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 40622400

約数和(自身を除く): 20349225

約数列:

[1, 3, 5, 9, 13, 15, 25, 29, 39, 45, 65, 75, 87, 117, 145, 195, 225, 239, 261, 325, 377, 435, 585, 717, 725, 975, 1131, 1195, 1305, 1885, 2151, 2175, 2925, 3107, 3393, 3585, 5655, 5975, 6525, 6931, 9321, 9425, 10755, 15535, 16965, 17925, 20793, 27963, 28275, 34655, 46605, 53775, 62379, 77675, 84825, 90103, 103965, 139815, 173275, 233025, 270309, 311895, 450515, 519825, 699075, 810927, 1351545, 1559475, 2252575, 4054635, 6757725, 20273175]

約数ペア:

[(1, 20273175), (3, 6757725), (5, 4054635), (9, 2252575), (13, 1559475), (15, 1351545), (25, 810927), (29, 699075), (39, 519825), (45, 450515), (65, 311895), (75, 270309), (87, 233025), (117, 173275), (145, 139815), (195, 103965), (225, 90103), (239, 84825), (261, 77675), (325, 62379), (377, 53775), (435, 46605), (585, 34655), (717, 28275), (725, 27963), (975, 20793), (1131, 17925), (1195, 16965), (1305, 15535), (1885, 10755), (2151, 9425), (2175, 9321), (2925, 6931), (3107, 6525), (3393, 5975), (3585, 5655)]