31921340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{389}}^1$

素因数の和:782

約数の個数: 48

約数和(自身を含む): 73513440

約数和(自身を除く): 41592100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 373, 389, 746, 778, 1492, 1556, 1865, 1945, 3730, 3890, 4103, 4279, 7460, 7780, 8206, 8558, 16412, 17116, 20515, 21395, 41030, 42790, 82060, 85580, 145097, 290194, 580388, 725485, 1450970, 1596067, 2901940, 3192134, 6384268, 7980335, 15960670, 31921340]

約数ペア:

[(1, 31921340), (2, 15960670), (4, 7980335), (5, 6384268), (10, 3192134), (11, 2901940), (20, 1596067), (22, 1450970), (44, 725485), (55, 580388), (110, 290194), (220, 145097), (373, 85580), (389, 82060), (746, 42790), (778, 41030), (1492, 21395), (1556, 20515), (1865, 17116), (1945, 16412), (3730, 8558), (3890, 8206), (4103, 7780), (4279, 7460)]