20962600

素因数分解:

$2^3\times 5^2\times {\mathrm{281}}^1\times {\mathrm{373}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 49042620

約数和(自身を除く): 28080020

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 281, 373, 562, 746, 1124, 1405, 1492, 1865, 2248, 2810, 2984, 3730, 5620, 7025, 7460, 9325, 11240, 14050, 14920, 18650, 28100, 37300, 56200, 74600, 104813, 209626, 419252, 524065, 838504, 1048130, 2096260, 2620325, 4192520, 5240650, 10481300, 20962600]

約数ペア:

[(1, 20962600), (2, 10481300), (4, 5240650), (5, 4192520), (8, 2620325), (10, 2096260), (20, 1048130), (25, 838504), (40, 524065), (50, 419252), (100, 209626), (200, 104813), (281, 74600), (373, 56200), (562, 37300), (746, 28100), (1124, 18650), (1405, 14920), (1492, 14050), (1865, 11240), (2248, 9325), (2810, 7460), (2984, 7025), (3730, 5620)]