28441580

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{383}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 61931520

約数和(自身を除く): 33489940

約数列:

[1, 2, 4, 5, 10, 20, 47, 79, 94, 158, 188, 235, 316, 383, 395, 470, 766, 790, 940, 1532, 1580, 1915, 3713, 3830, 7426, 7660, 14852, 18001, 18565, 30257, 36002, 37130, 60514, 72004, 74260, 90005, 121028, 151285, 180010, 302570, 360020, 605140, 1422079, 2844158, 5688316, 7110395, 14220790, 28441580]

約数ペア:

[(1, 28441580), (2, 14220790), (4, 7110395), (5, 5688316), (10, 2844158), (20, 1422079), (47, 605140), (79, 360020), (94, 302570), (158, 180010), (188, 151285), (235, 121028), (316, 90005), (383, 74260), (395, 72004), (470, 60514), (766, 37130), (790, 36002), (940, 30257), (1532, 18565), (1580, 18001), (1915, 14852), (3713, 7660), (3830, 7426)]