16239280

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4951}}^1$

素因数の和:5005

約数の個数: 40

約数和(自身を含む): 38685024

約数和(自身を除く): 22445744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 4951, 9902, 19804, 24755, 39608, 49510, 79216, 99020, 198040, 202991, 396080, 405982, 811964, 1014955, 1623928, 2029910, 3247856, 4059820, 8119640, 16239280]

約数ペア:

[(1, 16239280), (2, 8119640), (4, 4059820), (5, 3247856), (8, 2029910), (10, 1623928), (16, 1014955), (20, 811964), (40, 405982), (41, 396080), (80, 202991), (82, 198040), (164, 99020), (205, 79216), (328, 49510), (410, 39608), (656, 24755), (820, 19804), (1640, 9902), (3280, 4951)]