251446228

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{739}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 523594400

約数和(自身を除く): 272148172

約数列:

[1, 2, 4, 11, 19, 22, 37, 38, 44, 74, 76, 121, 148, 209, 242, 407, 418, 484, 703, 739, 814, 836, 1406, 1478, 1628, 2299, 2812, 2956, 4477, 4598, 7733, 8129, 8954, 9196, 14041, 15466, 16258, 17908, 27343, 28082, 30932, 32516, 54686, 56164, 85063, 89419, 109372, 154451, 170126, 178838, 300773, 308902, 340252, 357676, 519517, 601546, 617804, 1039034, 1203092, 1698961, 2078068, 3308503, 3397922, 5714687, 6617006, 6795844, 11429374, 13234012, 22858748, 62861557, 125723114, 251446228]

約数ペア:

[(1, 251446228), (2, 125723114), (4, 62861557), (11, 22858748), (19, 13234012), (22, 11429374), (37, 6795844), (38, 6617006), (44, 5714687), (74, 3397922), (76, 3308503), (121, 2078068), (148, 1698961), (209, 1203092), (242, 1039034), (407, 617804), (418, 601546), (484, 519517), (703, 357676), (739, 340252), (814, 308902), (836, 300773), (1406, 178838), (1478, 170126), (1628, 154451), (2299, 109372), (2812, 89419), (2956, 85063), (4477, 56164), (4598, 54686), (7733, 32516), (8129, 30932), (8954, 28082), (9196, 27343), (14041, 17908), (15466, 16258)]