1380920

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 3456000

約数和(自身を除く): 2075080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 79, 92, 95, 115, 152, 158, 184, 190, 230, 316, 380, 395, 437, 460, 632, 760, 790, 874, 920, 1501, 1580, 1748, 1817, 2185, 3002, 3160, 3496, 3634, 4370, 6004, 7268, 7505, 8740, 9085, 12008, 14536, 15010, 17480, 18170, 30020, 34523, 36340, 60040, 69046, 72680, 138092, 172615, 276184, 345230, 690460, 1380920]

約数ペア:

[(1, 1380920), (2, 690460), (4, 345230), (5, 276184), (8, 172615), (10, 138092), (19, 72680), (20, 69046), (23, 60040), (38, 36340), (40, 34523), (46, 30020), (76, 18170), (79, 17480), (92, 15010), (95, 14536), (115, 12008), (152, 9085), (158, 8740), (184, 7505), (190, 7268), (230, 6004), (316, 4370), (380, 3634), (395, 3496), (437, 3160), (460, 3002), (632, 2185), (760, 1817), (790, 1748), (874, 1580), (920, 1501)]