38378360

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:528

約数の個数: 64

約数和(自身を含む): 90240480

約数和(自身を除く): 51862120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 53, 86, 106, 172, 212, 215, 265, 344, 421, 424, 430, 530, 842, 860, 1060, 1684, 1720, 2105, 2120, 2279, 3368, 4210, 4558, 8420, 9116, 11395, 16840, 18103, 18232, 22313, 22790, 36206, 44626, 45580, 72412, 89252, 90515, 91160, 111565, 144824, 178504, 181030, 223130, 362060, 446260, 724120, 892520, 959459, 1918918, 3837836, 4797295, 7675672, 9594590, 19189180, 38378360]

約数ペア:

[(1, 38378360), (2, 19189180), (4, 9594590), (5, 7675672), (8, 4797295), (10, 3837836), (20, 1918918), (40, 959459), (43, 892520), (53, 724120), (86, 446260), (106, 362060), (172, 223130), (212, 181030), (215, 178504), (265, 144824), (344, 111565), (421, 91160), (424, 90515), (430, 89252), (530, 72412), (842, 45580), (860, 44626), (1060, 36206), (1684, 22790), (1720, 22313), (2105, 18232), (2120, 18103), (2279, 16840), (3368, 11395), (4210, 9116), (4558, 8420)]