20255820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25969}}^1$

素因数の和:25994

約数の個数: 48

約数和(自身を含む): 61081440

約数和(自身を除く): 40825620

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 25969, 51938, 77907, 103876, 129845, 155814, 259690, 311628, 337597, 389535, 519380, 675194, 779070, 1012791, 1350388, 1558140, 1687985, 2025582, 3375970, 4051164, 5063955, 6751940, 10127910, 20255820]

約数ペア:

[(1, 20255820), (2, 10127910), (3, 6751940), (4, 5063955), (5, 4051164), (6, 3375970), (10, 2025582), (12, 1687985), (13, 1558140), (15, 1350388), (20, 1012791), (26, 779070), (30, 675194), (39, 519380), (52, 389535), (60, 337597), (65, 311628), (78, 259690), (130, 155814), (156, 129845), (195, 103876), (260, 77907), (390, 51938), (780, 25969)]