139120400

素因数分解:

$2^4\times 5^2\times {\mathrm{347801}}^1$

素因数の和:347819

約数の個数: 30

約数和(自身を含む): 334237722

約数和(自身を除く): 195117322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 347801, 695602, 1391204, 1739005, 2782408, 3478010, 5564816, 6956020, 8695025, 13912040, 17390050, 27824080, 34780100, 69560200, 139120400]

約数ペア:

[(1, 139120400), (2, 69560200), (4, 34780100), (5, 27824080), (8, 17390050), (10, 13912040), (16, 8695025), (20, 6956020), (25, 5564816), (40, 3478010), (50, 2782408), (80, 1739005), (100, 1391204), (200, 695602), (400, 347801)]