20746100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 48434400

約数和(自身を除く): 27688300

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 61, 76, 95, 100, 122, 179, 190, 244, 305, 358, 380, 475, 610, 716, 895, 950, 1159, 1220, 1525, 1790, 1900, 2318, 3050, 3401, 3580, 4475, 4636, 5795, 6100, 6802, 8950, 10919, 11590, 13604, 17005, 17900, 21838, 23180, 28975, 34010, 43676, 54595, 57950, 68020, 85025, 109190, 115900, 170050, 207461, 218380, 272975, 340100, 414922, 545950, 829844, 1037305, 1091900, 2074610, 4149220, 5186525, 10373050, 20746100]

約数ペア:

[(1, 20746100), (2, 10373050), (4, 5186525), (5, 4149220), (10, 2074610), (19, 1091900), (20, 1037305), (25, 829844), (38, 545950), (50, 414922), (61, 340100), (76, 272975), (95, 218380), (100, 207461), (122, 170050), (179, 115900), (190, 109190), (244, 85025), (305, 68020), (358, 57950), (380, 54595), (475, 43676), (610, 34010), (716, 28975), (895, 23180), (950, 21838), (1159, 17900), (1220, 17005), (1525, 13604), (1790, 11590), (1900, 10919), (2318, 8950), (3050, 6802), (3401, 6100), (3580, 5795), (4475, 4636)]