16659440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 44997120

約数和(自身を除く): 28337680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 71, 80, 112, 140, 142, 280, 284, 355, 419, 497, 560, 568, 710, 838, 994, 1136, 1420, 1676, 1988, 2095, 2485, 2840, 2933, 3352, 3976, 4190, 4970, 5680, 5866, 6704, 7952, 8380, 9940, 11732, 14665, 16760, 19880, 23464, 29330, 29749, 33520, 39760, 46928, 58660, 59498, 117320, 118996, 148745, 208243, 234640, 237992, 297490, 416486, 475984, 594980, 832972, 1041215, 1189960, 1665944, 2082430, 2379920, 3331888, 4164860, 8329720, 16659440]

約数ペア:

[(1, 16659440), (2, 8329720), (4, 4164860), (5, 3331888), (7, 2379920), (8, 2082430), (10, 1665944), (14, 1189960), (16, 1041215), (20, 832972), (28, 594980), (35, 475984), (40, 416486), (56, 297490), (70, 237992), (71, 234640), (80, 208243), (112, 148745), (140, 118996), (142, 117320), (280, 59498), (284, 58660), (355, 46928), (419, 39760), (497, 33520), (560, 29749), (568, 29330), (710, 23464), (838, 19880), (994, 16760), (1136, 14665), (1420, 11732), (1676, 9940), (1988, 8380), (2095, 7952), (2485, 6704), (2840, 5866), (2933, 5680), (3352, 4970), (3976, 4190)]