19769680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{821}}^1$

素因数の和:884

約数の個数: 80

約数和(自身を含む): 53817984

約数和(自身を除く): 34048304

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 821, 860, 1204, 1505, 1642, 1720, 2408, 3010, 3284, 3440, 4105, 4816, 5747, 6020, 6568, 8210, 11494, 12040, 13136, 16420, 22988, 24080, 28735, 32840, 35303, 45976, 57470, 65680, 70606, 91952, 114940, 141212, 176515, 229880, 247121, 282424, 353030, 459760, 494242, 564848, 706060, 988484, 1235605, 1412120, 1976968, 2471210, 2824240, 3953936, 4942420, 9884840, 19769680]

約数ペア:

[(1, 19769680), (2, 9884840), (4, 4942420), (5, 3953936), (7, 2824240), (8, 2471210), (10, 1976968), (14, 1412120), (16, 1235605), (20, 988484), (28, 706060), (35, 564848), (40, 494242), (43, 459760), (56, 353030), (70, 282424), (80, 247121), (86, 229880), (112, 176515), (140, 141212), (172, 114940), (215, 91952), (280, 70606), (301, 65680), (344, 57470), (430, 45976), (560, 35303), (602, 32840), (688, 28735), (821, 24080), (860, 22988), (1204, 16420), (1505, 13136), (1642, 12040), (1720, 11494), (2408, 8210), (3010, 6568), (3284, 6020), (3440, 5747), (4105, 4816)]