19496680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{389}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 50544000

約数和(自身を除く): 31047320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 179, 280, 358, 389, 716, 778, 895, 1253, 1432, 1556, 1790, 1945, 2506, 2723, 3112, 3580, 3890, 5012, 5446, 6265, 7160, 7780, 10024, 10892, 12530, 13615, 15560, 21784, 25060, 27230, 50120, 54460, 69631, 108920, 139262, 278524, 348155, 487417, 557048, 696310, 974834, 1392620, 1949668, 2437085, 2785240, 3899336, 4874170, 9748340, 19496680]

約数ペア:

[(1, 19496680), (2, 9748340), (4, 4874170), (5, 3899336), (7, 2785240), (8, 2437085), (10, 1949668), (14, 1392620), (20, 974834), (28, 696310), (35, 557048), (40, 487417), (56, 348155), (70, 278524), (140, 139262), (179, 108920), (280, 69631), (358, 54460), (389, 50120), (716, 27230), (778, 25060), (895, 21784), (1253, 15560), (1432, 13615), (1556, 12530), (1790, 10892), (1945, 10024), (2506, 7780), (2723, 7160), (3112, 6265), (3580, 5446), (3890, 5012)]