13281520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1$

素因数の和:698

約数の個数: 80

約数和(自身を含む): 36301248

約数和(自身を除く): 23019728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 641, 740, 1036, 1282, 1295, 1480, 2072, 2564, 2590, 2960, 3205, 4144, 4487, 5128, 5180, 6410, 8974, 10256, 10360, 12820, 17948, 20720, 22435, 23717, 25640, 35896, 44870, 47434, 51280, 71792, 89740, 94868, 118585, 166019, 179480, 189736, 237170, 332038, 358960, 379472, 474340, 664076, 830095, 948680, 1328152, 1660190, 1897360, 2656304, 3320380, 6640760, 13281520]

約数ペア:

[(1, 13281520), (2, 6640760), (4, 3320380), (5, 2656304), (7, 1897360), (8, 1660190), (10, 1328152), (14, 948680), (16, 830095), (20, 664076), (28, 474340), (35, 379472), (37, 358960), (40, 332038), (56, 237170), (70, 189736), (74, 179480), (80, 166019), (112, 118585), (140, 94868), (148, 89740), (185, 71792), (259, 51280), (280, 47434), (296, 44870), (370, 35896), (518, 25640), (560, 23717), (592, 22435), (641, 20720), (740, 17948), (1036, 12820), (1282, 10360), (1295, 10256), (1480, 8974), (2072, 6410), (2564, 5180), (2590, 5128), (2960, 4487), (3205, 4144)]