80490320

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21407}}^1$

素因数の和:21467

約数の個数: 40

約数和(自身を含む): 191130624

約数和(自身を除く): 110640304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 21407, 42814, 85628, 107035, 171256, 214070, 342512, 428140, 856280, 1006129, 1712560, 2012258, 4024516, 5030645, 8049032, 10061290, 16098064, 20122580, 40245160, 80490320]

約数ペア:

[(1, 80490320), (2, 40245160), (4, 20122580), (5, 16098064), (8, 10061290), (10, 8049032), (16, 5030645), (20, 4024516), (40, 2012258), (47, 1712560), (80, 1006129), (94, 856280), (188, 428140), (235, 342512), (376, 214070), (470, 171256), (752, 107035), (940, 85628), (1880, 42814), (3760, 21407)]