28655360

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 69953856

約数和(自身を除く): 41298496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 367, 488, 610, 640, 734, 976, 1220, 1280, 1468, 1835, 1952, 2440, 2936, 3670, 3904, 4880, 5872, 7340, 7808, 9760, 11744, 14680, 15616, 19520, 22387, 23488, 29360, 39040, 44774, 46976, 58720, 78080, 89548, 93952, 111935, 117440, 179096, 223870, 234880, 358192, 447740, 469760, 716384, 895480, 1432768, 1790960, 2865536, 3581920, 5731072, 7163840, 14327680, 28655360]

約数ペア:

[(1, 28655360), (2, 14327680), (4, 7163840), (5, 5731072), (8, 3581920), (10, 2865536), (16, 1790960), (20, 1432768), (32, 895480), (40, 716384), (61, 469760), (64, 447740), (80, 358192), (122, 234880), (128, 223870), (160, 179096), (244, 117440), (256, 111935), (305, 93952), (320, 89548), (367, 78080), (488, 58720), (610, 46976), (640, 44774), (734, 39040), (976, 29360), (1220, 23488), (1280, 22387), (1468, 19520), (1835, 15616), (1952, 14680), (2440, 11744), (2936, 9760), (3670, 7808), (3904, 7340), (4880, 5872)]