215850980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1\times {\mathrm{757}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 464168880

約数和(自身を除く): 248317900

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 269, 530, 538, 757, 1060, 1076, 1345, 1514, 2690, 3028, 3785, 5380, 7570, 14257, 15140, 28514, 40121, 57028, 71285, 80242, 142570, 160484, 200605, 203633, 285140, 401210, 407266, 802420, 814532, 1018165, 2036330, 4072660, 10792549, 21585098, 43170196, 53962745, 107925490, 215850980]

約数ペア:

[(1, 215850980), (2, 107925490), (4, 53962745), (5, 43170196), (10, 21585098), (20, 10792549), (53, 4072660), (106, 2036330), (212, 1018165), (265, 814532), (269, 802420), (530, 407266), (538, 401210), (757, 285140), (1060, 203633), (1076, 200605), (1345, 160484), (1514, 142570), (2690, 80242), (3028, 71285), (3785, 57028), (5380, 40121), (7570, 28514), (14257, 15140)]