280884807

素因数分解:

$3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{7321}}^1$

素因数の和:7373

約数の個数: 48

約数和(自身を含む): 500824800

約数和(自身を除く): 219939993

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 87, 147, 189, 203, 261, 441, 609, 783, 1323, 1421, 1827, 4263, 5481, 7321, 12789, 21963, 38367, 51247, 65889, 153741, 197667, 212309, 358729, 461223, 636927, 1076187, 1383669, 1486163, 1910781, 3228561, 4458489, 5732343, 9685683, 10403141, 13375467, 31209423, 40126401, 93628269, 280884807]

約数ペア:

[(1, 280884807), (3, 93628269), (7, 40126401), (9, 31209423), (21, 13375467), (27, 10403141), (29, 9685683), (49, 5732343), (63, 4458489), (87, 3228561), (147, 1910781), (189, 1486163), (203, 1383669), (261, 1076187), (441, 636927), (609, 461223), (783, 358729), (1323, 212309), (1421, 197667), (1827, 153741), (4263, 65889), (5481, 51247), (7321, 38367), (12789, 21963)]