318184880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{305947}}^1$

素因数の和:305973

約数の個数: 40

約数和(自身を含む): 796688592

約数和(自身を除く): 478503712

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 305947, 611894, 1223788, 1529735, 2447576, 3059470, 3977311, 4895152, 6118940, 7954622, 12237880, 15909244, 19886555, 24475760, 31818488, 39773110, 63636976, 79546220, 159092440, 318184880]

約数ペア:

[(1, 318184880), (2, 159092440), (4, 79546220), (5, 63636976), (8, 39773110), (10, 31818488), (13, 24475760), (16, 19886555), (20, 15909244), (26, 12237880), (40, 7954622), (52, 6118940), (65, 4895152), (80, 3977311), (104, 3059470), (130, 2447576), (208, 1529735), (260, 1223788), (520, 611894), (1040, 305947)]