159640190

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{991}}^1$

素因数の和:1268

約数の個数: 32

約数和(自身を含む): 292481280

約数和(自身を除く): 132841090

約数列:

[1, 2, 5, 10, 89, 178, 181, 362, 445, 890, 905, 991, 1810, 1982, 4955, 9910, 16109, 32218, 80545, 88199, 161090, 176398, 179371, 358742, 440995, 881990, 896855, 1793710, 15964019, 31928038, 79820095, 159640190]

約数ペア:

[(1, 159640190), (2, 79820095), (5, 31928038), (10, 15964019), (89, 1793710), (178, 896855), (181, 881990), (362, 440995), (445, 358742), (890, 179371), (905, 176398), (991, 161090), (1810, 88199), (1982, 80545), (4955, 32218), (9910, 16109)]