8705920

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1$

素因数の和:303

約数の個数: 64

約数和(自身を含む): 21248640

約数和(自身を除く): 12542720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 223, 244, 305, 320, 446, 488, 610, 640, 892, 976, 1115, 1220, 1784, 1952, 2230, 2440, 3568, 3904, 4460, 4880, 7136, 7808, 8920, 9760, 13603, 14272, 17840, 19520, 27206, 28544, 35680, 39040, 54412, 68015, 71360, 108824, 136030, 142720, 217648, 272060, 435296, 544120, 870592, 1088240, 1741184, 2176480, 4352960, 8705920]

約数ペア:

[(1, 8705920), (2, 4352960), (4, 2176480), (5, 1741184), (8, 1088240), (10, 870592), (16, 544120), (20, 435296), (32, 272060), (40, 217648), (61, 142720), (64, 136030), (80, 108824), (122, 71360), (128, 68015), (160, 54412), (223, 39040), (244, 35680), (305, 28544), (320, 27206), (446, 19520), (488, 17840), (610, 14272), (640, 13603), (892, 9760), (976, 8920), (1115, 7808), (1220, 7136), (1784, 4880), (1952, 4460), (2230, 3904), (2440, 3568)]