18949150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 38890368

約数和(自身を除く): 19941218

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 131, 262, 263, 275, 526, 550, 655, 1310, 1315, 1441, 2630, 2882, 2893, 3275, 5786, 6550, 6575, 7205, 13150, 14410, 14465, 28930, 34453, 36025, 68906, 72050, 72325, 144650, 172265, 344530, 378983, 757966, 861325, 1722650, 1894915, 3789830, 9474575, 18949150]

約数ペア:

[(1, 18949150), (2, 9474575), (5, 3789830), (10, 1894915), (11, 1722650), (22, 861325), (25, 757966), (50, 378983), (55, 344530), (110, 172265), (131, 144650), (262, 72325), (263, 72050), (275, 68906), (526, 36025), (550, 34453), (655, 28930), (1310, 14465), (1315, 14410), (1441, 13150), (2630, 7205), (2882, 6575), (2893, 6550), (3275, 5786)]