1380664520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2030389}}^1$

素因数の和:2030417

約数の個数: 32

約数和(自身を含む): 3289231800

約数和(自身を除く): 1908567280

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 2030389, 4060778, 8121556, 10151945, 16243112, 20303890, 34516613, 40607780, 69033226, 81215560, 138066452, 172583065, 276132904, 345166130, 690332260, 1380664520]

約数ペア:

[(1, 1380664520), (2, 690332260), (4, 345166130), (5, 276132904), (8, 172583065), (10, 138066452), (17, 81215560), (20, 69033226), (34, 40607780), (40, 34516613), (68, 20303890), (85, 16243112), (136, 10151945), (170, 8121556), (340, 4060778), (680, 2030389)]