80113520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{58907}}^1$

素因数の和:58937

約数の個数: 40

約数和(自身を含む): 197223984

約数和(自身を除く): 117110464

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 58907, 117814, 235628, 294535, 471256, 589070, 942512, 1001419, 1178140, 2002838, 2356280, 4005676, 4712560, 5007095, 8011352, 10014190, 16022704, 20028380, 40056760, 80113520]

約数ペア:

[(1, 80113520), (2, 40056760), (4, 20028380), (5, 16022704), (8, 10014190), (10, 8011352), (16, 5007095), (17, 4712560), (20, 4005676), (34, 2356280), (40, 2002838), (68, 1178140), (80, 1001419), (85, 942512), (136, 589070), (170, 471256), (272, 294535), (340, 235628), (680, 117814), (1360, 58907)]