18490020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{883}}^1$

素因数の和:1244

約数の個数: 48

約数和(自身を含む): 51979200

約数和(自身を除く): 33489180

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349, 698, 883, 1047, 1396, 1745, 1766, 2094, 2649, 3490, 3532, 4188, 4415, 5235, 5298, 6980, 8830, 10470, 10596, 13245, 17660, 20940, 26490, 52980, 308167, 616334, 924501, 1232668, 1540835, 1849002, 3081670, 3698004, 4622505, 6163340, 9245010, 18490020]

約数ペア:

[(1, 18490020), (2, 9245010), (3, 6163340), (4, 4622505), (5, 3698004), (6, 3081670), (10, 1849002), (12, 1540835), (15, 1232668), (20, 924501), (30, 616334), (60, 308167), (349, 52980), (698, 26490), (883, 20940), (1047, 17660), (1396, 13245), (1745, 10596), (1766, 10470), (2094, 8830), (2649, 6980), (3490, 5298), (3532, 5235), (4188, 4415)]