16728640

素因数分解:

$2^6\times 5^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:935

約数の個数: 56

約数和(自身を含む): 40535352

約数和(自身を除く): 23806712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 160, 244, 305, 320, 488, 610, 857, 976, 1220, 1714, 1952, 2440, 3428, 3904, 4285, 4880, 6856, 8570, 9760, 13712, 17140, 19520, 27424, 34280, 52277, 54848, 68560, 104554, 137120, 209108, 261385, 274240, 418216, 522770, 836432, 1045540, 1672864, 2091080, 3345728, 4182160, 8364320, 16728640]

約数ペア:

[(1, 16728640), (2, 8364320), (4, 4182160), (5, 3345728), (8, 2091080), (10, 1672864), (16, 1045540), (20, 836432), (32, 522770), (40, 418216), (61, 274240), (64, 261385), (80, 209108), (122, 137120), (160, 104554), (244, 68560), (305, 54848), (320, 52277), (488, 34280), (610, 27424), (857, 19520), (976, 17140), (1220, 13712), (1714, 9760), (1952, 8570), (2440, 6856), (3428, 4880), (3904, 4285)]