1678278320

素因数分解:

$2^4\times 5^1\times {\mathrm{991}}^1\times {\mathrm{21169}}^1$

素因数の和:22173

約数の個数: 40

約数和(自身を含む): 3906119040

約数和(自身を除く): 2227840720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 991, 1982, 3964, 4955, 7928, 9910, 15856, 19820, 21169, 39640, 42338, 79280, 84676, 105845, 169352, 211690, 338704, 423380, 846760, 1693520, 20978479, 41956958, 83913916, 104892395, 167827832, 209784790, 335655664, 419569580, 839139160, 1678278320]

約数ペア:

[(1, 1678278320), (2, 839139160), (4, 419569580), (5, 335655664), (8, 209784790), (10, 167827832), (16, 104892395), (20, 83913916), (40, 41956958), (80, 20978479), (991, 1693520), (1982, 846760), (3964, 423380), (4955, 338704), (7928, 211690), (9910, 169352), (15856, 105845), (19820, 84676), (21169, 79280), (39640, 42338)]