8839775020

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1\times {\mathrm{4451}}^1$

素因数の和:5158

約数の個数: 48

約数和(自身を含む): 18698400000

約数和(自身を除く): 9858624980

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 499, 796, 995, 998, 1990, 1996, 2495, 3980, 4451, 4990, 8902, 9980, 17804, 22255, 44510, 89020, 99301, 198602, 397204, 496505, 885749, 993010, 1771498, 1986020, 2221049, 3542996, 4428745, 4442098, 8857490, 8884196, 11105245, 17714980, 22210490, 44420980, 441988751, 883977502, 1767955004, 2209943755, 4419887510, 8839775020]

約数ペア:

[(1, 8839775020), (2, 4419887510), (4, 2209943755), (5, 1767955004), (10, 883977502), (20, 441988751), (199, 44420980), (398, 22210490), (499, 17714980), (796, 11105245), (995, 8884196), (998, 8857490), (1990, 4442098), (1996, 4428745), (2495, 3542996), (3980, 2221049), (4451, 1986020), (4990, 1771498), (8902, 993010), (9980, 885749), (17804, 496505), (22255, 397204), (44510, 198602), (89020, 99301)]