1239424640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:578

約数の個数: 128

約数和(自身を含む): 3084480000

約数和(自身を除く): 1845055360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 179, 248, 310, 320, 349, 358, 496, 620, 640, 698, 716, 895, 992, 1240, 1396, 1432, 1745, 1790, 1984, 2480, 2792, 2864, 3490, 3580, 3968, 4960, 5549, 5584, 5728, 6980, 7160, 9920, 10819, 11098, 11168, 11456, 13960, 14320, 19840, 21638, 22196, 22336, 22912, 27745, 27920, 28640, 43276, 44392, 44672, 54095, 55490, 55840, 57280, 62471, 86552, 88784, 108190, 110980, 111680, 114560, 124942, 173104, 177568, 216380, 221960, 223360, 249884, 312355, 346208, 355136, 432760, 443920, 499768, 624710, 692416, 710272, 865520, 887840, 999536, 1249420, 1384832, 1731040, 1775680, 1936601, 1999072, 2498840, 3462080, 3551360, 3873202, 3998144, 4997680, 6924160, 7746404, 7996288, 9683005, 9995360, 15492808, 19366010, 19990720, 30985616, 38732020, 39981440, 61971232, 77464040, 123942464, 154928080, 247884928, 309856160, 619712320, 1239424640]

約数ペア:

[(1, 1239424640), (2, 619712320), (4, 309856160), (5, 247884928), (8, 154928080), (10, 123942464), (16, 77464040), (20, 61971232), (31, 39981440), (32, 38732020), (40, 30985616), (62, 19990720), (64, 19366010), (80, 15492808), (124, 9995360), (128, 9683005), (155, 7996288), (160, 7746404), (179, 6924160), (248, 4997680), (310, 3998144), (320, 3873202), (349, 3551360), (358, 3462080), (496, 2498840), (620, 1999072), (640, 1936601), (698, 1775680), (716, 1731040), (895, 1384832), (992, 1249420), (1240, 999536), (1396, 887840), (1432, 865520), (1745, 710272), (1790, 692416), (1984, 624710), (2480, 499768), (2792, 443920), (2864, 432760), (3490, 355136), (3580, 346208), (3968, 312355), (4960, 249884), (5549, 223360), (5584, 221960), (5728, 216380), (6980, 177568), (7160, 173104), (9920, 124942), (10819, 114560), (11098, 111680), (11168, 110980), (11456, 108190), (13960, 88784), (14320, 86552), (19840, 62471), (21638, 57280), (22196, 55840), (22336, 55490), (22912, 54095), (27745, 44672), (27920, 44392), (28640, 43276)]