20261840

素因数分解:

$2^4\times 5^1\times {\mathrm{253273}}^1$

素因数の和:253286

約数の個数: 20

約数和(自身を含む): 47108964

約数和(自身を除く): 26847124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253273, 506546, 1013092, 1266365, 2026184, 2532730, 4052368, 5065460, 10130920, 20261840]

約数ペア:

[(1, 20261840), (2, 10130920), (4, 5065460), (5, 4052368), (8, 2532730), (10, 2026184), (16, 1266365), (20, 1013092), (40, 506546), (80, 253273)]