20197387744

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{469969}}^1$

素因数の和:470075

約数の個数: 48

約数和(自身を含む): 42635678400

約数和(自身を除く): 22438290656

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 79, 136, 158, 272, 316, 544, 632, 1264, 1343, 2528, 2686, 5372, 10744, 21488, 42976, 469969, 939938, 1879876, 3759752, 7519504, 7989473, 15039008, 15978946, 31957892, 37127551, 63915784, 74255102, 127831568, 148510204, 255663136, 297020408, 594040816, 631168367, 1188081632, 1262336734, 2524673468, 5049346936, 10098693872, 20197387744]

約数ペア:

[(1, 20197387744), (2, 10098693872), (4, 5049346936), (8, 2524673468), (16, 1262336734), (17, 1188081632), (32, 631168367), (34, 594040816), (68, 297020408), (79, 255663136), (136, 148510204), (158, 127831568), (272, 74255102), (316, 63915784), (544, 37127551), (632, 31957892), (1264, 15978946), (1343, 15039008), (2528, 7989473), (2686, 7519504), (5372, 3759752), (10744, 1879876), (21488, 939938), (42976, 469969)]