31280210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 61979904

約数和(自身を除く): 30699694

約数列:

[1, 2, 5, 10, 13, 26, 65, 83, 130, 166, 169, 223, 338, 415, 446, 830, 845, 1079, 1115, 1690, 2158, 2230, 2899, 5395, 5798, 10790, 14027, 14495, 18509, 28054, 28990, 37018, 37687, 70135, 75374, 92545, 140270, 185090, 188435, 240617, 376870, 481234, 1203085, 2406170, 3128021, 6256042, 15640105, 31280210]

約数ペア:

[(1, 31280210), (2, 15640105), (5, 6256042), (10, 3128021), (13, 2406170), (26, 1203085), (65, 481234), (83, 376870), (130, 240617), (166, 188435), (169, 185090), (223, 140270), (338, 92545), (415, 75374), (446, 70135), (830, 37687), (845, 37018), (1079, 28990), (1115, 28054), (1690, 18509), (2158, 14495), (2230, 14027), (2899, 10790), (5395, 5798)]