40270000

素因数分解:

$2^4\times 5^4\times {\mathrm{4027}}^1$

素因数の和:4055

約数の個数: 50

約数和(自身を含む): 97521908

約数和(自身を除く): 57251908

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 4027, 5000, 8054, 10000, 16108, 20135, 32216, 40270, 64432, 80540, 100675, 161080, 201350, 322160, 402700, 503375, 805400, 1006750, 1610800, 2013500, 2516875, 4027000, 5033750, 8054000, 10067500, 20135000, 40270000]

約数ペア:

[(1, 40270000), (2, 20135000), (4, 10067500), (5, 8054000), (8, 5033750), (10, 4027000), (16, 2516875), (20, 2013500), (25, 1610800), (40, 1006750), (50, 805400), (80, 503375), (100, 402700), (125, 322160), (200, 201350), (250, 161080), (400, 100675), (500, 80540), (625, 64432), (1000, 40270), (1250, 32216), (2000, 20135), (2500, 16108), (4027, 10000), (5000, 8054)]