168377620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{23321}}^1$

素因数の和:23368

約数の個数: 36

約数和(自身を含む): 373198644

約数和(自身を除く): 204821024

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 7220, 23321, 46642, 93284, 116605, 233210, 443099, 466420, 886198, 1772396, 2215495, 4430990, 8418881, 8861980, 16837762, 33675524, 42094405, 84188810, 168377620]

約数ペア:

[(1, 168377620), (2, 84188810), (4, 42094405), (5, 33675524), (10, 16837762), (19, 8861980), (20, 8418881), (38, 4430990), (76, 2215495), (95, 1772396), (190, 886198), (361, 466420), (380, 443099), (722, 233210), (1444, 116605), (1805, 93284), (3610, 46642), (7220, 23321)]