18740274940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{388319}}^1$

素因数の和:388474

約数の個数: 48

約数和(自身を含む): 41752166400

約数和(自身を除く): 23011891460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 127, 190, 254, 380, 508, 635, 1270, 2413, 2540, 4826, 9652, 12065, 24130, 48260, 388319, 776638, 1553276, 1941595, 3883190, 7378061, 7766380, 14756122, 29512244, 36890305, 49316513, 73780610, 98633026, 147561220, 197266052, 246582565, 493165130, 937013747, 986330260, 1874027494, 3748054988, 4685068735, 9370137470, 18740274940]

約数ペア:

[(1, 18740274940), (2, 9370137470), (4, 4685068735), (5, 3748054988), (10, 1874027494), (19, 986330260), (20, 937013747), (38, 493165130), (76, 246582565), (95, 197266052), (127, 147561220), (190, 98633026), (254, 73780610), (380, 49316513), (508, 36890305), (635, 29512244), (1270, 14756122), (2413, 7766380), (2540, 7378061), (4826, 3883190), (9652, 1941595), (12065, 1553276), (24130, 776638), (48260, 388319)]