12288820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{443}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 27599040

約数和(自身を除く): 15310220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 443, 730, 886, 1387, 1460, 1772, 2215, 2774, 4430, 5548, 6935, 8417, 8860, 13870, 16834, 27740, 32339, 33668, 42085, 64678, 84170, 129356, 161695, 168340, 323390, 614441, 646780, 1228882, 2457764, 3072205, 6144410, 12288820]

約数ペア:

[(1, 12288820), (2, 6144410), (4, 3072205), (5, 2457764), (10, 1228882), (19, 646780), (20, 614441), (38, 323390), (73, 168340), (76, 161695), (95, 129356), (146, 84170), (190, 64678), (292, 42085), (365, 33668), (380, 32339), (443, 27740), (730, 16834), (886, 13870), (1387, 8860), (1460, 8417), (1772, 6935), (2215, 5548), (2774, 4430)]