65163620

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1\times {\mathrm{383}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 140894208

約数和(自身を除く): 75730588

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 181, 188, 235, 362, 383, 470, 724, 766, 905, 940, 1532, 1810, 1915, 3620, 3830, 7660, 8507, 17014, 18001, 34028, 36002, 42535, 69323, 72004, 85070, 90005, 138646, 170140, 180010, 277292, 346615, 360020, 693230, 1386460, 3258181, 6516362, 13032724, 16290905, 32581810, 65163620]

約数ペア:

[(1, 65163620), (2, 32581810), (4, 16290905), (5, 13032724), (10, 6516362), (20, 3258181), (47, 1386460), (94, 693230), (181, 360020), (188, 346615), (235, 277292), (362, 180010), (383, 170140), (470, 138646), (724, 90005), (766, 85070), (905, 72004), (940, 69323), (1532, 42535), (1810, 36002), (1915, 34028), (3620, 18001), (3830, 17014), (7660, 8507)]