80931640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1283}}^1$

素因数の和:1396

約数の個数: 64

約数和(自身を含む): 194140800

約数和(自身を除く): 113209160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 83, 95, 152, 166, 190, 332, 380, 415, 664, 760, 830, 1283, 1577, 1660, 2566, 3154, 3320, 5132, 6308, 6415, 7885, 10264, 12616, 12830, 15770, 24377, 25660, 31540, 48754, 51320, 63080, 97508, 106489, 121885, 195016, 212978, 243770, 425956, 487540, 532445, 851912, 975080, 1064890, 2023291, 2129780, 4046582, 4259560, 8093164, 10116455, 16186328, 20232910, 40465820, 80931640]

約数ペア:

[(1, 80931640), (2, 40465820), (4, 20232910), (5, 16186328), (8, 10116455), (10, 8093164), (19, 4259560), (20, 4046582), (38, 2129780), (40, 2023291), (76, 1064890), (83, 975080), (95, 851912), (152, 532445), (166, 487540), (190, 425956), (332, 243770), (380, 212978), (415, 195016), (664, 121885), (760, 106489), (830, 97508), (1283, 63080), (1577, 51320), (1660, 48754), (2566, 31540), (3154, 25660), (3320, 24377), (5132, 15770), (6308, 12830), (6415, 12616), (7885, 10264)]