64646320

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5147}}^1$

素因数の和:5317

約数の個数: 40

約数和(自身を含む): 151289424

約数和(自身を除く): 86643104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1570, 2512, 3140, 5147, 6280, 10294, 12560, 20588, 25735, 41176, 51470, 82352, 102940, 205880, 411760, 808079, 1616158, 3232316, 4040395, 6464632, 8080790, 12929264, 16161580, 32323160, 64646320]

約数ペア:

[(1, 64646320), (2, 32323160), (4, 16161580), (5, 12929264), (8, 8080790), (10, 6464632), (16, 4040395), (20, 3232316), (40, 1616158), (80, 808079), (157, 411760), (314, 205880), (628, 102940), (785, 82352), (1256, 51470), (1570, 41176), (2512, 25735), (3140, 20588), (5147, 12560), (6280, 10294)]