405160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1447}}^1$

素因数の和:1465

約数の個数: 32

約数和(自身を含む): 1042560

約数和(自身を除く): 637400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1447, 2894, 5788, 7235, 10129, 11576, 14470, 20258, 28940, 40516, 50645, 57880, 81032, 101290, 202580, 405160]

約数ペア:

[(1, 405160), (2, 202580), (4, 101290), (5, 81032), (7, 57880), (8, 50645), (10, 40516), (14, 28940), (20, 20258), (28, 14470), (35, 11576), (40, 10129), (56, 7235), (70, 5788), (140, 2894), (280, 1447)]