20396889664

素因数分解:

$2^6\times {\mathrm{2203}}^1\times {\mathrm{144667}}^1$

素因数の和:146882

約数の個数: 28

約数和(自身を含む): 40493730544

約数和(自身を除く): 20096840880

約数列:

[1, 2, 4, 8, 16, 32, 64, 2203, 4406, 8812, 17624, 35248, 70496, 140992, 144667, 289334, 578668, 1157336, 2314672, 4629344, 9258688, 318701401, 637402802, 1274805604, 2549611208, 5099222416, 10198444832, 20396889664]

約数ペア:

[(1, 20396889664), (2, 10198444832), (4, 5099222416), (8, 2549611208), (16, 1274805604), (32, 637402802), (64, 318701401), (2203, 9258688), (4406, 4629344), (8812, 2314672), (17624, 1157336), (35248, 578668), (70496, 289334), (140992, 144667)]