81280024

素因数分解:

$2^3\times 7^3\times {\mathrm{19}}^1\times {\mathrm{1559}}^1$

素因数の和:1605

約数の個数: 64

約数和(自身を含む): 187200000

約数和(自身を除く): 105919976

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 49, 56, 76, 98, 133, 152, 196, 266, 343, 392, 532, 686, 931, 1064, 1372, 1559, 1862, 2744, 3118, 3724, 6236, 6517, 7448, 10913, 12472, 13034, 21826, 26068, 29621, 43652, 52136, 59242, 76391, 87304, 118484, 152782, 207347, 236968, 305564, 414694, 534737, 611128, 829388, 1069474, 1451429, 1658776, 2138948, 2902858, 4277896, 5805716, 10160003, 11611432, 20320006, 40640012, 81280024]

約数ペア:

[(1, 81280024), (2, 40640012), (4, 20320006), (7, 11611432), (8, 10160003), (14, 5805716), (19, 4277896), (28, 2902858), (38, 2138948), (49, 1658776), (56, 1451429), (76, 1069474), (98, 829388), (133, 611128), (152, 534737), (196, 414694), (266, 305564), (343, 236968), (392, 207347), (532, 152782), (686, 118484), (931, 87304), (1064, 76391), (1372, 59242), (1559, 52136), (1862, 43652), (2744, 29621), (3118, 26068), (3724, 21826), (6236, 13034), (6517, 12472), (7448, 10913)]