20197681808

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{547}}^1\times {\mathrm{43543}}^1$

素因数の和:44151

約数の個数: 40

約数和(自身を含む): 39945175488

約数和(自身を除く): 19747493680

約数列:

[1, 2, 4, 8, 16, 53, 106, 212, 424, 547, 848, 1094, 2188, 4376, 8752, 28991, 43543, 57982, 87086, 115964, 174172, 231928, 348344, 463856, 696688, 2307779, 4615558, 9231116, 18462232, 23818021, 36924464, 47636042, 95272084, 190544168, 381088336, 1262355113, 2524710226, 5049420452, 10098840904, 20197681808]

約数ペア:

[(1, 20197681808), (2, 10098840904), (4, 5049420452), (8, 2524710226), (16, 1262355113), (53, 381088336), (106, 190544168), (212, 95272084), (424, 47636042), (547, 36924464), (848, 23818021), (1094, 18462232), (2188, 9231116), (4376, 4615558), (8752, 2307779), (28991, 696688), (43543, 463856), (57982, 348344), (87086, 231928), (115964, 174172)]