878920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:134

約数の個数: 64

約数和(自身を含む): 2344320

約数和(自身を除く): 1465400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 73, 86, 140, 146, 172, 215, 280, 292, 301, 344, 365, 430, 511, 584, 602, 730, 860, 1022, 1204, 1460, 1505, 1720, 2044, 2408, 2555, 2920, 3010, 3139, 4088, 5110, 6020, 6278, 10220, 12040, 12556, 15695, 20440, 21973, 25112, 31390, 43946, 62780, 87892, 109865, 125560, 175784, 219730, 439460, 878920]

約数ペア:

[(1, 878920), (2, 439460), (4, 219730), (5, 175784), (7, 125560), (8, 109865), (10, 87892), (14, 62780), (20, 43946), (28, 31390), (35, 25112), (40, 21973), (43, 20440), (56, 15695), (70, 12556), (73, 12040), (86, 10220), (140, 6278), (146, 6020), (172, 5110), (215, 4088), (280, 3139), (292, 3010), (301, 2920), (344, 2555), (365, 2408), (430, 2044), (511, 1720), (584, 1505), (602, 1460), (730, 1204), (860, 1022)]