19776460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{373}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 45616032

約数和(自身を除く): 25839572

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 241, 373, 482, 746, 964, 1205, 1492, 1865, 2410, 2651, 3730, 4103, 4820, 5302, 7460, 8206, 10604, 13255, 16412, 20515, 26510, 41030, 53020, 82060, 89893, 179786, 359572, 449465, 898930, 988823, 1797860, 1977646, 3955292, 4944115, 9888230, 19776460]

約数ペア:

[(1, 19776460), (2, 9888230), (4, 4944115), (5, 3955292), (10, 1977646), (11, 1797860), (20, 988823), (22, 898930), (44, 449465), (55, 359572), (110, 179786), (220, 89893), (241, 82060), (373, 53020), (482, 41030), (746, 26510), (964, 20515), (1205, 16412), (1492, 13255), (1865, 10604), (2410, 8206), (2651, 7460), (3730, 5302), (4103, 4820)]