20199089900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{798383}}^1$

素因数の和:798431

約数の個数: 72

約数和(自身を含む): 49895806464

約数和(自身を除く): 29696716564

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 1012, 1100, 1150, 1265, 2300, 2530, 5060, 6325, 12650, 25300, 798383, 1596766, 3193532, 3991915, 7983830, 8782213, 15967660, 17564426, 18362809, 19959575, 35128852, 36725618, 39919150, 43911065, 73451236, 79838300, 87822130, 91814045, 175644260, 183628090, 201990899, 219555325, 367256180, 403981798, 439110650, 459070225, 807963596, 878221300, 918140450, 1009954495, 1836280900, 2019908990, 4039817980, 5049772475, 10099544950, 20199089900]

約数ペア:

[(1, 20199089900), (2, 10099544950), (4, 5049772475), (5, 4039817980), (10, 2019908990), (11, 1836280900), (20, 1009954495), (22, 918140450), (23, 878221300), (25, 807963596), (44, 459070225), (46, 439110650), (50, 403981798), (55, 367256180), (92, 219555325), (100, 201990899), (110, 183628090), (115, 175644260), (220, 91814045), (230, 87822130), (253, 79838300), (275, 73451236), (460, 43911065), (506, 39919150), (550, 36725618), (575, 35128852), (1012, 19959575), (1100, 18362809), (1150, 17564426), (1265, 15967660), (2300, 8782213), (2530, 7983830), (5060, 3991915), (6325, 3193532), (12650, 1596766), (25300, 798383)]