628376045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 888330240

約数和(自身を除く): 259954195

約数列:

[1, 5, 11, 31, 41, 55, 89, 101, 155, 205, 341, 445, 451, 505, 979, 1111, 1271, 1705, 2255, 2759, 3131, 3649, 4141, 4895, 5555, 6355, 8989, 13795, 13981, 15655, 18245, 20705, 30349, 34441, 40139, 44945, 45551, 69905, 98879, 113119, 128371, 151745, 172205, 200695, 227755, 278659, 368549, 494395, 565595, 641855, 1244309, 1393295, 1412081, 1842745, 3065249, 4054039, 6221545, 7060405, 11425019, 15326245, 20270195, 57125095, 125675209, 628376045]

約数ペア:

[(1, 628376045), (5, 125675209), (11, 57125095), (31, 20270195), (41, 15326245), (55, 11425019), (89, 7060405), (101, 6221545), (155, 4054039), (205, 3065249), (341, 1842745), (445, 1412081), (451, 1393295), (505, 1244309), (979, 641855), (1111, 565595), (1271, 494395), (1705, 368549), (2255, 278659), (2759, 227755), (3131, 200695), (3649, 172205), (4141, 151745), (4895, 128371), (5555, 113119), (6355, 98879), (8989, 69905), (13795, 45551), (13981, 44945), (15655, 40139), (18245, 34441), (20705, 30349)]