28623790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{523}}^1$

素因数の和:964

約数の個数: 32

約数和(自身を含む): 55724256

約数和(自身を除く): 27100466

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 421, 523, 842, 1046, 2105, 2615, 4210, 5230, 5473, 6799, 10946, 13598, 27365, 33995, 54730, 67990, 220183, 440366, 1100915, 2201830, 2862379, 5724758, 14311895, 28623790]

約数ペア:

[(1, 28623790), (2, 14311895), (5, 5724758), (10, 2862379), (13, 2201830), (26, 1100915), (65, 440366), (130, 220183), (421, 67990), (523, 54730), (842, 33995), (1046, 27365), (2105, 13598), (2615, 10946), (4210, 6799), (5230, 5473)]