255015680

素因数分解:

$2^8\times 5^1\times {\mathrm{167}}^1\times {\mathrm{1193}}^1$

素因数の和:1381

約数の個数: 72

約数和(自身を含む): 615015072

約数和(自身を除く): 359999392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 167, 256, 320, 334, 640, 668, 835, 1193, 1280, 1336, 1670, 2386, 2672, 3340, 4772, 5344, 5965, 6680, 9544, 10688, 11930, 13360, 19088, 21376, 23860, 26720, 38176, 42752, 47720, 53440, 76352, 95440, 106880, 152704, 190880, 199231, 213760, 305408, 381760, 398462, 763520, 796924, 996155, 1527040, 1593848, 1992310, 3187696, 3984620, 6375392, 7969240, 12750784, 15938480, 25501568, 31876960, 51003136, 63753920, 127507840, 255015680]

約数ペア:

[(1, 255015680), (2, 127507840), (4, 63753920), (5, 51003136), (8, 31876960), (10, 25501568), (16, 15938480), (20, 12750784), (32, 7969240), (40, 6375392), (64, 3984620), (80, 3187696), (128, 1992310), (160, 1593848), (167, 1527040), (256, 996155), (320, 796924), (334, 763520), (640, 398462), (668, 381760), (835, 305408), (1193, 213760), (1280, 199231), (1336, 190880), (1670, 152704), (2386, 106880), (2672, 95440), (3340, 76352), (4772, 53440), (5344, 47720), (5965, 42752), (6680, 38176), (9544, 26720), (10688, 23860), (11930, 21376), (13360, 19088)]