204445900

素因数分解:

$2^2\times 5^2\times {\mathrm{1409}}^1\times {\mathrm{1451}}^1$

素因数の和:2874

約数の個数: 36

約数和(自身を含む): 444268440

約数和(自身を除く): 239822540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1409, 1451, 2818, 2902, 5636, 5804, 7045, 7255, 14090, 14510, 28180, 29020, 35225, 36275, 70450, 72550, 140900, 145100, 2044459, 4088918, 8177836, 10222295, 20444590, 40889180, 51111475, 102222950, 204445900]

約数ペア:

[(1, 204445900), (2, 102222950), (4, 51111475), (5, 40889180), (10, 20444590), (20, 10222295), (25, 8177836), (50, 4088918), (100, 2044459), (1409, 145100), (1451, 140900), (2818, 72550), (2902, 70450), (5636, 36275), (5804, 35225), (7045, 29020), (7255, 28180), (14090, 14510)]