128564880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31511}}^1$

素因数の和:31544

約数の個数: 80

約数和(自身を含む): 422008704

約数和(自身を除く): 293443824

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 31511, 63022, 94533, 126044, 157555, 189066, 252088, 315110, 378132, 472665, 504176, 535687, 630220, 756264, 945330, 1071374, 1260440, 1512528, 1607061, 1890660, 2142748, 2520880, 2678435, 3214122, 3781320, 4285496, 5356870, 6428244, 7562640, 8035305, 8570992, 10713740, 12856488, 16070610, 21427480, 25712976, 32141220, 42854960, 64282440, 128564880]

約数ペア:

[(1, 128564880), (2, 64282440), (3, 42854960), (4, 32141220), (5, 25712976), (6, 21427480), (8, 16070610), (10, 12856488), (12, 10713740), (15, 8570992), (16, 8035305), (17, 7562640), (20, 6428244), (24, 5356870), (30, 4285496), (34, 3781320), (40, 3214122), (48, 2678435), (51, 2520880), (60, 2142748), (68, 1890660), (80, 1607061), (85, 1512528), (102, 1260440), (120, 1071374), (136, 945330), (170, 756264), (204, 630220), (240, 535687), (255, 504176), (272, 472665), (340, 378132), (408, 315110), (510, 252088), (680, 189066), (816, 157555), (1020, 126044), (1360, 94533), (2040, 63022), (4080, 31511)]