71385660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20873}}^1$

素因数の和:20907

約数の個数: 72

約数和(自身を含む): 227944080

約数和(自身を除く): 156558420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 20873, 41746, 62619, 83492, 104365, 125238, 187857, 208730, 250476, 313095, 375714, 396587, 417460, 626190, 751428, 793174, 939285, 1189761, 1252380, 1586348, 1878570, 1982935, 2379522, 3569283, 3757140, 3965870, 4759044, 5948805, 7138566, 7931740, 11897610, 14277132, 17846415, 23795220, 35692830, 71385660]

約数ペア:

[(1, 71385660), (2, 35692830), (3, 23795220), (4, 17846415), (5, 14277132), (6, 11897610), (9, 7931740), (10, 7138566), (12, 5948805), (15, 4759044), (18, 3965870), (19, 3757140), (20, 3569283), (30, 2379522), (36, 1982935), (38, 1878570), (45, 1586348), (57, 1252380), (60, 1189761), (76, 939285), (90, 793174), (95, 751428), (114, 626190), (171, 417460), (180, 396587), (190, 375714), (228, 313095), (285, 250476), (342, 208730), (380, 187857), (570, 125238), (684, 104365), (855, 83492), (1140, 62619), (1710, 41746), (3420, 20873)]