1880780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 4402944

約数和(自身を除く): 2522164

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 103, 110, 166, 206, 220, 332, 412, 415, 515, 830, 913, 1030, 1133, 1660, 1826, 2060, 2266, 3652, 4532, 4565, 5665, 8549, 9130, 11330, 17098, 18260, 22660, 34196, 42745, 85490, 94039, 170980, 188078, 376156, 470195, 940390, 1880780]

約数ペア:

[(1, 1880780), (2, 940390), (4, 470195), (5, 376156), (10, 188078), (11, 170980), (20, 94039), (22, 85490), (44, 42745), (55, 34196), (83, 22660), (103, 18260), (110, 17098), (166, 11330), (206, 9130), (220, 8549), (332, 5665), (412, 4565), (415, 4532), (515, 3652), (830, 2266), (913, 2060), (1030, 1826), (1133, 1660)]