90296980

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 193107600

約数和(自身を除く): 102810620

約数列:

[1, 2, 4, 5, 10, 20, 149, 157, 193, 298, 314, 386, 596, 628, 745, 772, 785, 965, 1490, 1570, 1930, 2980, 3140, 3860, 23393, 28757, 30301, 46786, 57514, 60602, 93572, 115028, 116965, 121204, 143785, 151505, 233930, 287570, 303010, 467860, 575140, 606020, 4514849, 9029698, 18059396, 22574245, 45148490, 90296980]

約数ペア:

[(1, 90296980), (2, 45148490), (4, 22574245), (5, 18059396), (10, 9029698), (20, 4514849), (149, 606020), (157, 575140), (193, 467860), (298, 303010), (314, 287570), (386, 233930), (596, 151505), (628, 143785), (745, 121204), (772, 116965), (785, 115028), (965, 93572), (1490, 60602), (1570, 57514), (1930, 46786), (2980, 30301), (3140, 28757), (3860, 23393)]