131889920

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{617}}^1$

素因数の和:805

約数の個数: 72

約数和(自身を含む): 318324384

約数和(自身を除く): 186434464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 617, 640, 668, 835, 1234, 1280, 1336, 1670, 2468, 2672, 3085, 3340, 4936, 5344, 6170, 6680, 9872, 10688, 12340, 13360, 19744, 21376, 24680, 26720, 39488, 42752, 49360, 53440, 78976, 98720, 103039, 106880, 157952, 197440, 206078, 213760, 394880, 412156, 515195, 789760, 824312, 1030390, 1648624, 2060780, 3297248, 4121560, 6594496, 8243120, 13188992, 16486240, 26377984, 32972480, 65944960, 131889920]

約数ペア:

[(1, 131889920), (2, 65944960), (4, 32972480), (5, 26377984), (8, 16486240), (10, 13188992), (16, 8243120), (20, 6594496), (32, 4121560), (40, 3297248), (64, 2060780), (80, 1648624), (128, 1030390), (160, 824312), (167, 789760), (256, 515195), (320, 412156), (334, 394880), (617, 213760), (640, 206078), (668, 197440), (835, 157952), (1234, 106880), (1280, 103039), (1336, 98720), (1670, 78976), (2468, 53440), (2672, 49360), (3085, 42752), (3340, 39488), (4936, 26720), (5344, 24680), (6170, 21376), (6680, 19744), (9872, 13360), (10688, 12340)]