320433880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{616219}}^1$

素因数の和:616243

約数の個数: 32

約数和(自身を含む): 776437200

約数和(自身を除く): 456003320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 616219, 1232438, 2464876, 3081095, 4929752, 6162190, 8010847, 12324380, 16021694, 24648760, 32043388, 40054235, 64086776, 80108470, 160216940, 320433880]

約数ペア:

[(1, 320433880), (2, 160216940), (4, 80108470), (5, 64086776), (8, 40054235), (10, 32043388), (13, 24648760), (20, 16021694), (26, 12324380), (40, 8010847), (52, 6162190), (65, 4929752), (104, 3081095), (130, 2464876), (260, 1232438), (520, 616219)]