261031736

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^2\times {\mathrm{127}}^2$

素因数の和:301

約数の個数: 72

約数和(自身を含む): 598907880

約数和(自身を除く): 337876144

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 127, 136, 238, 254, 289, 476, 508, 578, 889, 952, 1016, 1156, 1778, 2023, 2159, 2312, 3556, 4046, 4318, 7112, 8092, 8636, 15113, 16129, 16184, 17272, 30226, 32258, 36703, 60452, 64516, 73406, 112903, 120904, 129032, 146812, 225806, 256921, 274193, 293624, 451612, 513842, 548386, 903224, 1027684, 1096772, 1919351, 2055368, 2193544, 3838702, 4661281, 7677404, 9322562, 15354808, 18645124, 32628967, 37290248, 65257934, 130515868, 261031736]

約数ペア:

[(1, 261031736), (2, 130515868), (4, 65257934), (7, 37290248), (8, 32628967), (14, 18645124), (17, 15354808), (28, 9322562), (34, 7677404), (56, 4661281), (68, 3838702), (119, 2193544), (127, 2055368), (136, 1919351), (238, 1096772), (254, 1027684), (289, 903224), (476, 548386), (508, 513842), (578, 451612), (889, 293624), (952, 274193), (1016, 256921), (1156, 225806), (1778, 146812), (2023, 129032), (2159, 120904), (2312, 112903), (3556, 73406), (4046, 64516), (4318, 60452), (7112, 36703), (8092, 32258), (8636, 30226), (15113, 17272), (16129, 16184)]