385018020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{2138989}}^1$

素因数の和:2139004

約数の個数: 36

約数和(自身を含む): 1167888540

約数和(自身を除く): 782870520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 2138989, 4277978, 6416967, 8555956, 10694945, 12833934, 19250901, 21389890, 25667868, 32084835, 38501802, 42779780, 64169670, 77003604, 96254505, 128339340, 192509010, 385018020]

約数ペア:

[(1, 385018020), (2, 192509010), (3, 128339340), (4, 96254505), (5, 77003604), (6, 64169670), (9, 42779780), (10, 38501802), (12, 32084835), (15, 25667868), (18, 21389890), (20, 19250901), (30, 12833934), (36, 10694945), (45, 8555956), (60, 6416967), (90, 4277978), (180, 2138989)]