20771300

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{821}}^1$

素因数の和:869

約数の個数: 72

約数和(自身を含む): 51371712

約数和(自身を除く): 30600412

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, 821, 1012, 1100, 1150, 1265, 1642, 2300, 2530, 3284, 4105, 5060, 6325, 8210, 9031, 12650, 16420, 18062, 18883, 20525, 25300, 36124, 37766, 41050, 45155, 75532, 82100, 90310, 94415, 180620, 188830, 207713, 225775, 377660, 415426, 451550, 472075, 830852, 903100, 944150, 1038565, 1888300, 2077130, 4154260, 5192825, 10385650, 20771300]

約数ペア:

[(1, 20771300), (2, 10385650), (4, 5192825), (5, 4154260), (10, 2077130), (11, 1888300), (20, 1038565), (22, 944150), (23, 903100), (25, 830852), (44, 472075), (46, 451550), (50, 415426), (55, 377660), (92, 225775), (100, 207713), (110, 188830), (115, 180620), (220, 94415), (230, 90310), (253, 82100), (275, 75532), (460, 45155), (506, 41050), (550, 37766), (575, 36124), (821, 25300), (1012, 20525), (1100, 18883), (1150, 18062), (1265, 16420), (1642, 12650), (2300, 9031), (2530, 8210), (3284, 6325), (4105, 5060)]