66686640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1999}}^1$

素因数の和:2154

約数の個数: 80

約数和(自身を含む): 208320000

約数和(自身を除く): 141633360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 139, 240, 278, 417, 556, 695, 834, 1112, 1390, 1668, 1999, 2085, 2224, 2780, 3336, 3998, 4170, 5560, 5997, 6672, 7996, 8340, 9995, 11120, 11994, 15992, 16680, 19990, 23988, 29985, 31984, 33360, 39980, 47976, 59970, 79960, 95952, 119940, 159920, 239880, 277861, 479760, 555722, 833583, 1111444, 1389305, 1667166, 2222888, 2778610, 3334332, 4167915, 4445776, 5557220, 6668664, 8335830, 11114440, 13337328, 16671660, 22228880, 33343320, 66686640]

約数ペア:

[(1, 66686640), (2, 33343320), (3, 22228880), (4, 16671660), (5, 13337328), (6, 11114440), (8, 8335830), (10, 6668664), (12, 5557220), (15, 4445776), (16, 4167915), (20, 3334332), (24, 2778610), (30, 2222888), (40, 1667166), (48, 1389305), (60, 1111444), (80, 833583), (120, 555722), (139, 479760), (240, 277861), (278, 239880), (417, 159920), (556, 119940), (695, 95952), (834, 79960), (1112, 59970), (1390, 47976), (1668, 39980), (1999, 33360), (2085, 31984), (2224, 29985), (2780, 23988), (3336, 19990), (3998, 16680), (4170, 15992), (5560, 11994), (5997, 11120), (6672, 9995), (7996, 8340)]