81644880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{20011}}^1$

素因数の和:20044

約数の個数: 80

約数和(自身を含む): 268000704

約数和(自身を除く): 186355824

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, 20011, 40022, 60033, 80044, 100055, 120066, 160088, 200110, 240132, 300165, 320176, 340187, 400220, 480264, 600330, 680374, 800440, 960528, 1020561, 1200660, 1360748, 1600880, 1700935, 2041122, 2401320, 2721496, 3401870, 4082244, 4802640, 5102805, 5442992, 6803740, 8164488, 10205610, 13607480, 16328976, 20411220, 27214960, 40822440, 81644880]

約数ペア:

[(1, 81644880), (2, 40822440), (3, 27214960), (4, 20411220), (5, 16328976), (6, 13607480), (8, 10205610), (10, 8164488), (12, 6803740), (15, 5442992), (16, 5102805), (17, 4802640), (20, 4082244), (24, 3401870), (30, 2721496), (34, 2401320), (40, 2041122), (48, 1700935), (51, 1600880), (60, 1360748), (68, 1200660), (80, 1020561), (85, 960528), (102, 800440), (120, 680374), (136, 600330), (170, 480264), (204, 400220), (240, 340187), (255, 320176), (272, 300165), (340, 240132), (408, 200110), (510, 160088), (680, 120066), (816, 100055), (1020, 80044), (1360, 60033), (2040, 40022), (4080, 20011)]