28458320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:540

約数の個数: 80

約数和(自身を含む): 73334592

約数和(自身を除く): 44876272

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 73, 80, 88, 110, 146, 176, 220, 292, 365, 440, 443, 584, 730, 803, 880, 886, 1168, 1460, 1606, 1772, 2215, 2920, 3212, 3544, 4015, 4430, 4873, 5840, 6424, 7088, 8030, 8860, 9746, 12848, 16060, 17720, 19492, 24365, 32120, 32339, 35440, 38984, 48730, 64240, 64678, 77968, 97460, 129356, 161695, 194920, 258712, 323390, 355729, 389840, 517424, 646780, 711458, 1293560, 1422916, 1778645, 2587120, 2845832, 3557290, 5691664, 7114580, 14229160, 28458320]

約数ペア:

[(1, 28458320), (2, 14229160), (4, 7114580), (5, 5691664), (8, 3557290), (10, 2845832), (11, 2587120), (16, 1778645), (20, 1422916), (22, 1293560), (40, 711458), (44, 646780), (55, 517424), (73, 389840), (80, 355729), (88, 323390), (110, 258712), (146, 194920), (176, 161695), (220, 129356), (292, 97460), (365, 77968), (440, 64678), (443, 64240), (584, 48730), (730, 38984), (803, 35440), (880, 32339), (886, 32120), (1168, 24365), (1460, 19492), (1606, 17720), (1772, 16060), (2215, 12848), (2920, 9746), (3212, 8860), (3544, 8030), (4015, 7088), (4430, 6424), (4873, 5840)]