20243368840

素因数分解:

$2^3\times 5^1\times {\mathrm{1213}}^1\times {\mathrm{417217}}^1$

素因数の和:418441

約数の個数: 32

約数和(自身を含む): 45585238680

約数和(自身を除く): 25341869840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1213, 2426, 4852, 6065, 9704, 12130, 24260, 48520, 417217, 834434, 1668868, 2086085, 3337736, 4172170, 8344340, 16688680, 506084221, 1012168442, 2024336884, 2530421105, 4048673768, 5060842210, 10121684420, 20243368840]

約数ペア:

[(1, 20243368840), (2, 10121684420), (4, 5060842210), (5, 4048673768), (8, 2530421105), (10, 2024336884), (20, 1012168442), (40, 506084221), (1213, 16688680), (2426, 8344340), (4852, 4172170), (6065, 3337736), (9704, 2086085), (12130, 1668868), (24260, 834434), (48520, 417217)]