4428920

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{421}}^1$

素因数の和:695

約数の個数: 32

約数和(自身を含む): 10026720

約数和(自身を除く): 5597800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 421, 526, 842, 1052, 1315, 1684, 2104, 2105, 2630, 3368, 4210, 5260, 8420, 10520, 16840, 110723, 221446, 442892, 553615, 885784, 1107230, 2214460, 4428920]

約数ペア:

[(1, 4428920), (2, 2214460), (4, 1107230), (5, 885784), (8, 553615), (10, 442892), (20, 221446), (40, 110723), (263, 16840), (421, 10520), (526, 8420), (842, 5260), (1052, 4210), (1315, 3368), (1684, 2630), (2104, 2105)]