20171472

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 55323840

約数和(自身を除く): 35152368

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 43, 48, 58, 86, 87, 116, 129, 172, 174, 232, 258, 337, 344, 348, 464, 516, 674, 688, 696, 1011, 1032, 1247, 1348, 1392, 2022, 2064, 2494, 2696, 3741, 4044, 4988, 5392, 7482, 8088, 9773, 9976, 14491, 14964, 16176, 19546, 19952, 28982, 29319, 29928, 39092, 43473, 57964, 58638, 59856, 78184, 86946, 115928, 117276, 156368, 173892, 231856, 234552, 347784, 420239, 469104, 695568, 840478, 1260717, 1680956, 2521434, 3361912, 5042868, 6723824, 10085736, 20171472]

約数ペア:

[(1, 20171472), (2, 10085736), (3, 6723824), (4, 5042868), (6, 3361912), (8, 2521434), (12, 1680956), (16, 1260717), (24, 840478), (29, 695568), (43, 469104), (48, 420239), (58, 347784), (86, 234552), (87, 231856), (116, 173892), (129, 156368), (172, 117276), (174, 115928), (232, 86946), (258, 78184), (337, 59856), (344, 58638), (348, 57964), (464, 43473), (516, 39092), (674, 29928), (688, 29319), (696, 28982), (1011, 19952), (1032, 19546), (1247, 16176), (1348, 14964), (1392, 14491), (2022, 9976), (2064, 9773), (2494, 8088), (2696, 7482), (3741, 5392), (4044, 4988)]