40002800

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1031}}^1$

素因数の和:1146

約数の個数: 60

約数和(自身を含む): 97191696

約数和(自身を除く): 57188896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1031, 1552, 1940, 2062, 2425, 3880, 4124, 4850, 5155, 7760, 8248, 9700, 10310, 16496, 19400, 20620, 25775, 38800, 41240, 51550, 82480, 100007, 103100, 200014, 206200, 400028, 412400, 500035, 800056, 1000070, 1600112, 2000140, 2500175, 4000280, 5000350, 8000560, 10000700, 20001400, 40002800]

約数ペア:

[(1, 40002800), (2, 20001400), (4, 10000700), (5, 8000560), (8, 5000350), (10, 4000280), (16, 2500175), (20, 2000140), (25, 1600112), (40, 1000070), (50, 800056), (80, 500035), (97, 412400), (100, 400028), (194, 206200), (200, 200014), (388, 103100), (400, 100007), (485, 82480), (776, 51550), (970, 41240), (1031, 38800), (1552, 25775), (1940, 20620), (2062, 19400), (2425, 16496), (3880, 10310), (4124, 9700), (4850, 8248), (5155, 7760)]