16781640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1283}}^1$

素因数の和:1406

約数の個数: 64

約数和(自身を含む): 50846400

約数和(自身を除く): 34064760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 109, 120, 218, 327, 436, 545, 654, 872, 1090, 1283, 1308, 1635, 2180, 2566, 2616, 3270, 3849, 4360, 5132, 6415, 6540, 7698, 10264, 12830, 13080, 15396, 19245, 25660, 30792, 38490, 51320, 76980, 139847, 153960, 279694, 419541, 559388, 699235, 839082, 1118776, 1398470, 1678164, 2097705, 2796940, 3356328, 4195410, 5593880, 8390820, 16781640]

約数ペア:

[(1, 16781640), (2, 8390820), (3, 5593880), (4, 4195410), (5, 3356328), (6, 2796940), (8, 2097705), (10, 1678164), (12, 1398470), (15, 1118776), (20, 839082), (24, 699235), (30, 559388), (40, 419541), (60, 279694), (109, 153960), (120, 139847), (218, 76980), (327, 51320), (436, 38490), (545, 30792), (654, 25660), (872, 19245), (1090, 15396), (1283, 13080), (1308, 12830), (1635, 10264), (2180, 7698), (2566, 6540), (2616, 6415), (3270, 5132), (3849, 4360)]