67920080

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7789}}^1$

素因数の和:7911

約数の個数: 40

約数和(自身を含む): 159383400

約数和(自身を除く): 91463320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 7789, 8720, 15578, 31156, 38945, 62312, 77890, 124624, 155780, 311560, 623120, 849001, 1698002, 3396004, 4245005, 6792008, 8490010, 13584016, 16980020, 33960040, 67920080]

約数ペア:

[(1, 67920080), (2, 33960040), (4, 16980020), (5, 13584016), (8, 8490010), (10, 6792008), (16, 4245005), (20, 3396004), (40, 1698002), (80, 849001), (109, 623120), (218, 311560), (436, 155780), (545, 124624), (872, 77890), (1090, 62312), (1744, 38945), (2180, 31156), (4360, 15578), (7789, 8720)]