20915568

素因数分解:

$2^4\times 3^2\times {\mathrm{337}}^1\times {\mathrm{431}}^1$

素因数の和:782

約数の個数: 60

約数和(自身を含む): 58844448

約数和(自身を除く): 37928880

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 337, 431, 674, 862, 1011, 1293, 1348, 1724, 2022, 2586, 2696, 3033, 3448, 3879, 4044, 5172, 5392, 6066, 6896, 7758, 8088, 10344, 12132, 15516, 16176, 20688, 24264, 31032, 48528, 62064, 145247, 290494, 435741, 580988, 871482, 1161976, 1307223, 1742964, 2323952, 2614446, 3485928, 5228892, 6971856, 10457784, 20915568]

約数ペア:

[(1, 20915568), (2, 10457784), (3, 6971856), (4, 5228892), (6, 3485928), (8, 2614446), (9, 2323952), (12, 1742964), (16, 1307223), (18, 1161976), (24, 871482), (36, 580988), (48, 435741), (72, 290494), (144, 145247), (337, 62064), (431, 48528), (674, 31032), (862, 24264), (1011, 20688), (1293, 16176), (1348, 15516), (1724, 12132), (2022, 10344), (2586, 8088), (2696, 7758), (3033, 6896), (3448, 6066), (3879, 5392), (4044, 5172)]