40452440

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{20639}}^1$

素因数の和:20664

約数の個数: 48

約数和(自身を含む): 105883200

約数和(自身を除く): 65430760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 20639, 41278, 82556, 103195, 144473, 165112, 206390, 288946, 412780, 577892, 722365, 825560, 1011311, 1155784, 1444730, 2022622, 2889460, 4045244, 5056555, 5778920, 8090488, 10113110, 20226220, 40452440]

約数ペア:

[(1, 40452440), (2, 20226220), (4, 10113110), (5, 8090488), (7, 5778920), (8, 5056555), (10, 4045244), (14, 2889460), (20, 2022622), (28, 1444730), (35, 1155784), (40, 1011311), (49, 825560), (56, 722365), (70, 577892), (98, 412780), (140, 288946), (196, 206390), (245, 165112), (280, 144473), (392, 103195), (490, 82556), (980, 41278), (1960, 20639)]