280161520

素因数分解:

$2^4\times 5^1\times {\mathrm{83}}^1\times {\mathrm{42193}}^1$

素因数の和:42289

約数の個数: 40

約数和(自身を含む): 659239056

約数和(自身を除く): 379077536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83, 166, 332, 415, 664, 830, 1328, 1660, 3320, 6640, 42193, 84386, 168772, 210965, 337544, 421930, 675088, 843860, 1687720, 3375440, 3502019, 7004038, 14008076, 17510095, 28016152, 35020190, 56032304, 70040380, 140080760, 280161520]

約数ペア:

[(1, 280161520), (2, 140080760), (4, 70040380), (5, 56032304), (8, 35020190), (10, 28016152), (16, 17510095), (20, 14008076), (40, 7004038), (80, 3502019), (83, 3375440), (166, 1687720), (332, 843860), (415, 675088), (664, 421930), (830, 337544), (1328, 210965), (1660, 168772), (3320, 84386), (6640, 42193)]