40000002800

素因数分解:

$2^4\times 5^2\times {\mathrm{100000007}}^1$

素因数の和:100000025

約数の個数: 30

約数和(自身を含む): 96100007688

約数和(自身を除く): 56100004888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 100000007, 200000014, 400000028, 500000035, 800000056, 1000000070, 1600000112, 2000000140, 2500000175, 4000000280, 5000000350, 8000000560, 10000000700, 20000001400, 40000002800]

約数ペア:

[(1, 40000002800), (2, 20000001400), (4, 10000000700), (5, 8000000560), (8, 5000000350), (10, 4000000280), (16, 2500000175), (20, 2000000140), (25, 1600000112), (40, 1000000070), (50, 800000056), (80, 500000035), (100, 400000028), (200, 200000014), (400, 100000007)]