20736380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2029}}^1$

素因数の和:2118

約数の個数: 48

約数和(自身を含む): 50473920

約数和(自身を除く): 29737540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 1022, 1460, 2029, 2044, 2555, 4058, 5110, 8116, 10145, 10220, 14203, 20290, 28406, 40580, 56812, 71015, 142030, 148117, 284060, 296234, 592468, 740585, 1036819, 1481170, 2073638, 2962340, 4147276, 5184095, 10368190, 20736380]

約数ペア:

[(1, 20736380), (2, 10368190), (4, 5184095), (5, 4147276), (7, 2962340), (10, 2073638), (14, 1481170), (20, 1036819), (28, 740585), (35, 592468), (70, 296234), (73, 284060), (140, 148117), (146, 142030), (292, 71015), (365, 56812), (511, 40580), (730, 28406), (1022, 20290), (1460, 14203), (2029, 10220), (2044, 10145), (2555, 8116), (4058, 5110)]