64120720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{173}}^1$

素因数の和:340

約数の個数: 80

約数和(自身を含む): 154958832

約数和(自身を除く): 90838112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 113, 164, 173, 205, 226, 328, 346, 410, 452, 565, 656, 692, 820, 865, 904, 1130, 1384, 1640, 1730, 1808, 2260, 2768, 3280, 3460, 4520, 4633, 6920, 7093, 9040, 9266, 13840, 14186, 18532, 19549, 23165, 28372, 35465, 37064, 39098, 46330, 56744, 70930, 74128, 78196, 92660, 97745, 113488, 141860, 156392, 185320, 195490, 283720, 312784, 370640, 390980, 567440, 781960, 801509, 1563920, 1603018, 3206036, 4007545, 6412072, 8015090, 12824144, 16030180, 32060360, 64120720]

約数ペア:

[(1, 64120720), (2, 32060360), (4, 16030180), (5, 12824144), (8, 8015090), (10, 6412072), (16, 4007545), (20, 3206036), (40, 1603018), (41, 1563920), (80, 801509), (82, 781960), (113, 567440), (164, 390980), (173, 370640), (205, 312784), (226, 283720), (328, 195490), (346, 185320), (410, 156392), (452, 141860), (565, 113488), (656, 97745), (692, 92660), (820, 78196), (865, 74128), (904, 70930), (1130, 56744), (1384, 46330), (1640, 39098), (1730, 37064), (1808, 35465), (2260, 28372), (2768, 23165), (3280, 19549), (3460, 18532), (4520, 14186), (4633, 13840), (6920, 9266), (7093, 9040)]