16646640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{499}}^1$

素因数の和:654

約数の個数: 80

約数和(自身を含む): 52080000

約数和(自身を除く): 35433360

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, 499, 556, 695, 834, 998, 1112, 1390, 1497, 1668, 1996, 2085, 2224, 2495, 2780, 2994, 3336, 3992, 4170, 4990, 5560, 5988, 6672, 7485, 7984, 8340, 9980, 11120, 11976, 14970, 16680, 19960, 23952, 29940, 33360, 39920, 59880, 69361, 119760, 138722, 208083, 277444, 346805, 416166, 554888, 693610, 832332, 1040415, 1109776, 1387220, 1664664, 2080830, 2774440, 3329328, 4161660, 5548880, 8323320, 16646640]

約数ペア:

[(1, 16646640), (2, 8323320), (3, 5548880), (4, 4161660), (5, 3329328), (6, 2774440), (8, 2080830), (10, 1664664), (12, 1387220), (15, 1109776), (16, 1040415), (20, 832332), (24, 693610), (30, 554888), (40, 416166), (48, 346805), (60, 277444), (80, 208083), (120, 138722), (139, 119760), (240, 69361), (278, 59880), (417, 39920), (499, 33360), (556, 29940), (695, 23952), (834, 19960), (998, 16680), (1112, 14970), (1390, 11976), (1497, 11120), (1668, 9980), (1996, 8340), (2085, 7984), (2224, 7485), (2495, 6672), (2780, 5988), (2994, 5560), (3336, 4990), (3992, 4170)]