261587760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{155707}}^1$

素因数の和:155730

約数の個数: 80

約数和(自身を含む): 926774016

約数和(自身を除く): 665186256

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 155707, 311414, 467121, 622828, 778535, 934242, 1089949, 1245656, 1557070, 1868484, 2179898, 2335605, 2491312, 3114140, 3269847, 3736968, 4359796, 4671210, 5449745, 6228280, 6539694, 7473936, 8719592, 9342420, 10899490, 12456560, 13079388, 16349235, 17439184, 18684840, 21798980, 26158776, 32698470, 37369680, 43597960, 52317552, 65396940, 87195920, 130793880, 261587760]

約数ペア:

[(1, 261587760), (2, 130793880), (3, 87195920), (4, 65396940), (5, 52317552), (6, 43597960), (7, 37369680), (8, 32698470), (10, 26158776), (12, 21798980), (14, 18684840), (15, 17439184), (16, 16349235), (20, 13079388), (21, 12456560), (24, 10899490), (28, 9342420), (30, 8719592), (35, 7473936), (40, 6539694), (42, 6228280), (48, 5449745), (56, 4671210), (60, 4359796), (70, 3736968), (80, 3269847), (84, 3114140), (105, 2491312), (112, 2335605), (120, 2179898), (140, 1868484), (168, 1557070), (210, 1245656), (240, 1089949), (280, 934242), (336, 778535), (420, 622828), (560, 467121), (840, 311414), (1680, 155707)]