31781024

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 74462976

約数和(自身を除く): 42681952

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 47, 68, 88, 94, 113, 136, 176, 187, 188, 226, 272, 352, 374, 376, 452, 517, 544, 748, 752, 799, 904, 1034, 1243, 1496, 1504, 1598, 1808, 1921, 2068, 2486, 2992, 3196, 3616, 3842, 4136, 4972, 5311, 5984, 6392, 7684, 8272, 8789, 9944, 10622, 12784, 15368, 16544, 17578, 19888, 21131, 21244, 25568, 30736, 35156, 39776, 42262, 42488, 58421, 61472, 70312, 84524, 84976, 90287, 116842, 140624, 169048, 169952, 180574, 233684, 281248, 338096, 361148, 467368, 676192, 722296, 934736, 993157, 1444592, 1869472, 1986314, 2889184, 3972628, 7945256, 15890512, 31781024]

約数ペア:

[(1, 31781024), (2, 15890512), (4, 7945256), (8, 3972628), (11, 2889184), (16, 1986314), (17, 1869472), (22, 1444592), (32, 993157), (34, 934736), (44, 722296), (47, 676192), (68, 467368), (88, 361148), (94, 338096), (113, 281248), (136, 233684), (176, 180574), (187, 169952), (188, 169048), (226, 140624), (272, 116842), (352, 90287), (374, 84976), (376, 84524), (452, 70312), (517, 61472), (544, 58421), (748, 42488), (752, 42262), (799, 39776), (904, 35156), (1034, 30736), (1243, 25568), (1496, 21244), (1504, 21131), (1598, 19888), (1808, 17578), (1921, 16544), (2068, 15368), (2486, 12784), (2992, 10622), (3196, 9944), (3616, 8789), (3842, 8272), (4136, 7684), (4972, 6392), (5311, 5984)]