18222325

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 48

約数和(自身を含む): 26712576

約数和(自身を除く): 8490251

約数列:

[1, 5, 11, 23, 25, 43, 55, 67, 115, 215, 253, 275, 335, 473, 575, 737, 989, 1075, 1265, 1541, 1675, 2365, 2881, 3685, 4945, 6325, 7705, 10879, 11825, 14405, 16951, 18425, 24725, 31691, 38525, 54395, 66263, 72025, 84755, 158455, 271975, 331315, 423775, 728893, 792275, 1656575, 3644465, 18222325]

約数ペア:

[(1, 18222325), (5, 3644465), (11, 1656575), (23, 792275), (25, 728893), (43, 423775), (55, 331315), (67, 271975), (115, 158455), (215, 84755), (253, 72025), (275, 66263), (335, 54395), (473, 38525), (575, 31691), (737, 24725), (989, 18425), (1075, 16951), (1265, 14405), (1541, 11825), (1675, 10879), (2365, 7705), (2881, 6325), (3685, 4945)]