16991320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 40896000

約数和(自身を除く): 23904680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 283, 316, 380, 395, 566, 632, 760, 790, 1132, 1415, 1501, 1580, 2264, 2830, 3002, 3160, 5377, 5660, 6004, 7505, 10754, 11320, 12008, 15010, 21508, 22357, 26885, 30020, 43016, 44714, 53770, 60040, 89428, 107540, 111785, 178856, 215080, 223570, 424783, 447140, 849566, 894280, 1699132, 2123915, 3398264, 4247830, 8495660, 16991320]

約数ペア:

[(1, 16991320), (2, 8495660), (4, 4247830), (5, 3398264), (8, 2123915), (10, 1699132), (19, 894280), (20, 849566), (38, 447140), (40, 424783), (76, 223570), (79, 215080), (95, 178856), (152, 111785), (158, 107540), (190, 89428), (283, 60040), (316, 53770), (380, 44714), (395, 43016), (566, 30020), (632, 26885), (760, 22357), (790, 21508), (1132, 15010), (1415, 12008), (1501, 11320), (1580, 10754), (2264, 7505), (2830, 6004), (3002, 5660), (3160, 5377)]