210828280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{405439}}^1$

素因数の和:405463

約数の個数: 32

約数和(自身を含む): 510854400

約数和(自身を除く): 300026120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 405439, 810878, 1621756, 2027195, 3243512, 4054390, 5270707, 8108780, 10541414, 16217560, 21082828, 26353535, 42165656, 52707070, 105414140, 210828280]

約数ペア:

[(1, 210828280), (2, 105414140), (4, 52707070), (5, 42165656), (8, 26353535), (10, 21082828), (13, 16217560), (20, 10541414), (26, 8108780), (40, 5270707), (52, 4054390), (65, 3243512), (104, 2027195), (130, 1621756), (260, 810878), (520, 405439)]