213047720

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{64171}}^1$

素因数の和:64265

約数の個数: 32

約数和(自身を含む): 485140320

約数和(自身を除く): 272092600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 64171, 128342, 256684, 320855, 513368, 641710, 1283420, 2566840, 5326193, 10652386, 21304772, 26630965, 42609544, 53261930, 106523860, 213047720]

約数ペア:

[(1, 213047720), (2, 106523860), (4, 53261930), (5, 42609544), (8, 26630965), (10, 21304772), (20, 10652386), (40, 5326193), (83, 2566840), (166, 1283420), (332, 641710), (415, 513368), (664, 320855), (830, 256684), (1660, 128342), (3320, 64171)]