28972540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{571}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 63423360

約数和(自身を除く): 34450820

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 215, 236, 295, 430, 571, 590, 860, 1142, 1180, 2284, 2537, 2855, 5074, 5710, 10148, 11420, 12685, 24553, 25370, 33689, 49106, 50740, 67378, 98212, 122765, 134756, 168445, 245530, 336890, 491060, 673780, 1448627, 2897254, 5794508, 7243135, 14486270, 28972540]

約数ペア:

[(1, 28972540), (2, 14486270), (4, 7243135), (5, 5794508), (10, 2897254), (20, 1448627), (43, 673780), (59, 491060), (86, 336890), (118, 245530), (172, 168445), (215, 134756), (236, 122765), (295, 98212), (430, 67378), (571, 50740), (590, 49106), (860, 33689), (1142, 25370), (1180, 24553), (2284, 12685), (2537, 11420), (2855, 10148), (5074, 5710)]