20496136

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 41696640

約数和(自身を除く): 21200504

約数列:

[1, 2, 4, 8, 19, 38, 47, 76, 94, 151, 152, 188, 302, 361, 376, 604, 722, 893, 1208, 1444, 1786, 2869, 2888, 3572, 5738, 7097, 7144, 11476, 14194, 16967, 22952, 28388, 33934, 54511, 56776, 67868, 109022, 134843, 135736, 218044, 269686, 436088, 539372, 1078744, 2562017, 5124034, 10248068, 20496136]

約数ペア:

[(1, 20496136), (2, 10248068), (4, 5124034), (8, 2562017), (19, 1078744), (38, 539372), (47, 436088), (76, 269686), (94, 218044), (151, 135736), (152, 134843), (188, 109022), (302, 67868), (361, 56776), (376, 54511), (604, 33934), (722, 28388), (893, 22952), (1208, 16967), (1444, 14194), (1786, 11476), (2869, 7144), (2888, 7097), (3572, 5738)]