31439120

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23117}}^1$

素因数の和:23147

約数の個数: 40

約数和(自身を含む): 77399064

約数和(自身を除く): 45959944

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 23117, 46234, 92468, 115585, 184936, 231170, 369872, 392989, 462340, 785978, 924680, 1571956, 1849360, 1964945, 3143912, 3929890, 6287824, 7859780, 15719560, 31439120]

約数ペア:

[(1, 31439120), (2, 15719560), (4, 7859780), (5, 6287824), (8, 3929890), (10, 3143912), (16, 1964945), (17, 1849360), (20, 1571956), (34, 924680), (40, 785978), (68, 462340), (80, 392989), (85, 369872), (136, 231170), (170, 184936), (272, 115585), (340, 92468), (680, 46234), (1360, 23117)]