20734588945

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1\times {\mathrm{991}}^1$

素因数の和:1526

約数の個数: 64

約数和(自身を含む): 30443765760

約数和(自身を除く): 9709176815

約数列:

[1, 5, 7, 19, 35, 73, 95, 133, 365, 431, 511, 665, 991, 1387, 2155, 2555, 3017, 4955, 6935, 6937, 8189, 9709, 15085, 18829, 31463, 34685, 40945, 48545, 57323, 72343, 94145, 131803, 157315, 220241, 286615, 361715, 427121, 506401, 597797, 659015, 1101205, 1374517, 2135605, 2532005, 2988985, 2989847, 4184579, 6872585, 8115299, 9621619, 14949235, 20922895, 31179833, 40576495, 48108095, 56807093, 155899165, 218258831, 284035465, 592416827, 1091294155, 2962084135, 4146917789, 20734588945]

約数ペア:

[(1, 20734588945), (5, 4146917789), (7, 2962084135), (19, 1091294155), (35, 592416827), (73, 284035465), (95, 218258831), (133, 155899165), (365, 56807093), (431, 48108095), (511, 40576495), (665, 31179833), (991, 20922895), (1387, 14949235), (2155, 9621619), (2555, 8115299), (3017, 6872585), (4955, 4184579), (6935, 2989847), (6937, 2988985), (8189, 2532005), (9709, 2135605), (15085, 1374517), (18829, 1101205), (31463, 659015), (34685, 597797), (40945, 506401), (48545, 427121), (57323, 361715), (72343, 286615), (94145, 220241), (131803, 157315)]