257694788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{887}}^1$

素因数の和:1092

約数の個数: 48

約数和(自身を含む): 502650624

約数和(自身を除く): 244955836

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 151, 302, 481, 604, 887, 962, 1774, 1924, 1963, 3548, 3926, 5587, 7852, 11174, 11531, 22348, 23062, 32819, 46124, 65638, 72631, 131276, 133937, 145262, 267874, 290524, 426647, 535748, 853294, 1706588, 1741181, 3482362, 4955669, 6964724, 9911338, 19822676, 64423697, 128847394, 257694788]

約数ペア:

[(1, 257694788), (2, 128847394), (4, 64423697), (13, 19822676), (26, 9911338), (37, 6964724), (52, 4955669), (74, 3482362), (148, 1741181), (151, 1706588), (302, 853294), (481, 535748), (604, 426647), (887, 290524), (962, 267874), (1774, 145262), (1924, 133937), (1963, 131276), (3548, 72631), (3926, 65638), (5587, 46124), (7852, 32819), (11174, 23062), (11531, 22348)]