28925900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{2081}}^1$

素因数の和:2234

約数の個数: 36

約数和(自身を含む): 63251160

約数和(自身を除く): 34325260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 2081, 2780, 3475, 4162, 6950, 8324, 10405, 13900, 20810, 41620, 52025, 104050, 208100, 289259, 578518, 1157036, 1446295, 2892590, 5785180, 7231475, 14462950, 28925900]

約数ペア:

[(1, 28925900), (2, 14462950), (4, 7231475), (5, 5785180), (10, 2892590), (20, 1446295), (25, 1157036), (50, 578518), (100, 289259), (139, 208100), (278, 104050), (556, 52025), (695, 41620), (1390, 20810), (2081, 13900), (2780, 10405), (3475, 8324), (4162, 6950)]