253139718

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 563834880

約数和(自身を除く): 310695162

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 239, 367, 478, 481, 717, 734, 962, 1101, 1434, 1443, 2202, 2886, 3107, 4771, 6214, 8843, 9321, 9542, 13579, 14313, 17686, 18642, 26529, 27158, 28626, 40737, 53058, 81474, 87713, 114959, 175426, 176527, 229918, 263139, 344877, 353054, 526278, 529581, 689754, 1059162, 1140269, 2280538, 3245381, 3420807, 6490762, 6841614, 9736143, 19472286, 42189953, 84379906, 126569859, 253139718]

約数ペア:

[(1, 253139718), (2, 126569859), (3, 84379906), (6, 42189953), (13, 19472286), (26, 9736143), (37, 6841614), (39, 6490762), (74, 3420807), (78, 3245381), (111, 2280538), (222, 1140269), (239, 1059162), (367, 689754), (478, 529581), (481, 526278), (717, 353054), (734, 344877), (962, 263139), (1101, 229918), (1434, 176527), (1443, 175426), (2202, 114959), (2886, 87713), (3107, 81474), (4771, 53058), (6214, 40737), (8843, 28626), (9321, 27158), (9542, 26529), (13579, 18642), (14313, 17686)]