218855680

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8999}}^1$

素因数の和:9039

約数の個数: 72

約数和(自身を含む): 551880000

約数和(自身を除く): 333024320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 608, 640, 760, 1216, 1280, 1520, 2432, 3040, 4864, 6080, 8999, 12160, 17998, 24320, 35996, 44995, 71992, 89990, 143984, 170981, 179980, 287968, 341962, 359960, 575936, 683924, 719920, 854905, 1151872, 1367848, 1439840, 1709810, 2303744, 2735696, 2879680, 3419620, 5471392, 5759360, 6839240, 10942784, 11518720, 13678480, 21885568, 27356960, 43771136, 54713920, 109427840, 218855680]

約数ペア:

[(1, 218855680), (2, 109427840), (4, 54713920), (5, 43771136), (8, 27356960), (10, 21885568), (16, 13678480), (19, 11518720), (20, 10942784), (32, 6839240), (38, 5759360), (40, 5471392), (64, 3419620), (76, 2879680), (80, 2735696), (95, 2303744), (128, 1709810), (152, 1439840), (160, 1367848), (190, 1151872), (256, 854905), (304, 719920), (320, 683924), (380, 575936), (608, 359960), (640, 341962), (760, 287968), (1216, 179980), (1280, 170981), (1520, 143984), (2432, 89990), (3040, 71992), (4864, 44995), (6080, 35996), (8999, 24320), (12160, 17998)]