1851640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 5054400

約数和(自身を除く): 3202760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 389, 476, 595, 680, 778, 952, 1190, 1556, 1945, 2380, 2723, 3112, 3890, 4760, 5446, 6613, 7780, 10892, 13226, 13615, 15560, 21784, 26452, 27230, 33065, 46291, 52904, 54460, 66130, 92582, 108920, 132260, 185164, 231455, 264520, 370328, 462910, 925820, 1851640]

約数ペア:

[(1, 1851640), (2, 925820), (4, 462910), (5, 370328), (7, 264520), (8, 231455), (10, 185164), (14, 132260), (17, 108920), (20, 92582), (28, 66130), (34, 54460), (35, 52904), (40, 46291), (56, 33065), (68, 27230), (70, 26452), (85, 21784), (119, 15560), (136, 13615), (140, 13226), (170, 10892), (238, 7780), (280, 6613), (340, 5446), (389, 4760), (476, 3890), (595, 3112), (680, 2723), (778, 2380), (952, 1945), (1190, 1556)]