28761460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{15803}}^1$

素因数の和:15832

約数の個数: 48

約数和(自身を含む): 74342016

約数和(自身を除く): 45580556

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 15803, 31606, 63212, 79015, 110621, 158030, 205439, 221242, 316060, 410878, 442484, 553105, 821756, 1027195, 1106210, 1438073, 2054390, 2212420, 2876146, 4108780, 5752292, 7190365, 14380730, 28761460]

約数ペア:

[(1, 28761460), (2, 14380730), (4, 7190365), (5, 5752292), (7, 4108780), (10, 2876146), (13, 2212420), (14, 2054390), (20, 1438073), (26, 1106210), (28, 1027195), (35, 821756), (52, 553105), (65, 442484), (70, 410878), (91, 316060), (130, 221242), (140, 205439), (182, 158030), (260, 110621), (364, 79015), (455, 63212), (910, 31606), (1820, 15803)]