291250316

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 628855920

約数和(自身を除く): 337605604

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 197, 266, 394, 397, 532, 788, 794, 931, 1379, 1588, 1862, 2758, 2779, 3724, 3743, 5516, 5558, 7486, 7543, 9653, 11116, 14972, 15086, 19306, 19453, 26201, 30172, 38612, 38906, 52402, 52801, 77812, 78209, 104804, 105602, 156418, 183407, 211204, 312836, 366814, 369607, 547463, 733628, 739214, 1094926, 1478428, 1485971, 2189852, 2971942, 3832241, 5943884, 7664482, 10401797, 15328964, 20803594, 41607188, 72812579, 145625158, 291250316]

約数ペア:

[(1, 291250316), (2, 145625158), (4, 72812579), (7, 41607188), (14, 20803594), (19, 15328964), (28, 10401797), (38, 7664482), (49, 5943884), (76, 3832241), (98, 2971942), (133, 2189852), (196, 1485971), (197, 1478428), (266, 1094926), (394, 739214), (397, 733628), (532, 547463), (788, 369607), (794, 366814), (931, 312836), (1379, 211204), (1588, 183407), (1862, 156418), (2758, 105602), (2779, 104804), (3724, 78209), (3743, 77812), (5516, 52801), (5558, 52402), (7486, 38906), (7543, 38612), (9653, 30172), (11116, 26201), (14972, 19453), (15086, 19306)]