16903880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{827}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 44115840

約数和(自身を除く): 27211960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 73, 140, 146, 280, 292, 365, 511, 584, 730, 827, 1022, 1460, 1654, 2044, 2555, 2920, 3308, 4088, 4135, 5110, 5789, 6616, 8270, 10220, 11578, 16540, 20440, 23156, 28945, 33080, 46312, 57890, 60371, 115780, 120742, 231560, 241484, 301855, 422597, 482968, 603710, 845194, 1207420, 1690388, 2112985, 2414840, 3380776, 4225970, 8451940, 16903880]

約数ペア:

[(1, 16903880), (2, 8451940), (4, 4225970), (5, 3380776), (7, 2414840), (8, 2112985), (10, 1690388), (14, 1207420), (20, 845194), (28, 603710), (35, 482968), (40, 422597), (56, 301855), (70, 241484), (73, 231560), (140, 120742), (146, 115780), (280, 60371), (292, 57890), (365, 46312), (511, 33080), (584, 28945), (730, 23156), (827, 20440), (1022, 16540), (1460, 11578), (1654, 10220), (2044, 8270), (2555, 6616), (2920, 5789), (3308, 5110), (4088, 4135)]