20923100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{827}}^1$

素因数の和:875

約数の個数: 72

約数和(自身を含む): 51746688

約数和(自身を除く): 30823588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 220, 230, 253, 275, 460, 506, 550, 575, 827, 1012, 1100, 1150, 1265, 1654, 2300, 2530, 3308, 4135, 5060, 6325, 8270, 9097, 12650, 16540, 18194, 19021, 20675, 25300, 36388, 38042, 41350, 45485, 76084, 82700, 90970, 95105, 181940, 190210, 209231, 227425, 380420, 418462, 454850, 475525, 836924, 909700, 951050, 1046155, 1902100, 2092310, 4184620, 5230775, 10461550, 20923100]

約数ペア:

[(1, 20923100), (2, 10461550), (4, 5230775), (5, 4184620), (10, 2092310), (11, 1902100), (20, 1046155), (22, 951050), (23, 909700), (25, 836924), (44, 475525), (46, 454850), (50, 418462), (55, 380420), (92, 227425), (100, 209231), (110, 190210), (115, 181940), (220, 95105), (230, 90970), (253, 82700), (275, 76084), (460, 45485), (506, 41350), (550, 38042), (575, 36388), (827, 25300), (1012, 20675), (1100, 19021), (1150, 18194), (1265, 16540), (1654, 12650), (2300, 9097), (2530, 8270), (3308, 6325), (4135, 5060)]