31121200

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{643}}^1$

素因数の和:683

約数の個数: 90

約数和(自身を含む): 82311572

約数和(自身を除く): 51190372

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 121, 176, 200, 220, 242, 275, 400, 440, 484, 550, 605, 643, 880, 968, 1100, 1210, 1286, 1936, 2200, 2420, 2572, 3025, 3215, 4400, 4840, 5144, 6050, 6430, 7073, 9680, 10288, 12100, 12860, 14146, 16075, 24200, 25720, 28292, 32150, 35365, 48400, 51440, 56584, 64300, 70730, 77803, 113168, 128600, 141460, 155606, 176825, 257200, 282920, 311212, 353650, 389015, 565840, 622424, 707300, 778030, 1244848, 1414600, 1556060, 1945075, 2829200, 3112120, 3890150, 6224240, 7780300, 15560600, 31121200]

約数ペア:

[(1, 31121200), (2, 15560600), (4, 7780300), (5, 6224240), (8, 3890150), (10, 3112120), (11, 2829200), (16, 1945075), (20, 1556060), (22, 1414600), (25, 1244848), (40, 778030), (44, 707300), (50, 622424), (55, 565840), (80, 389015), (88, 353650), (100, 311212), (110, 282920), (121, 257200), (176, 176825), (200, 155606), (220, 141460), (242, 128600), (275, 113168), (400, 77803), (440, 70730), (484, 64300), (550, 56584), (605, 51440), (643, 48400), (880, 35365), (968, 32150), (1100, 28292), (1210, 25720), (1286, 24200), (1936, 16075), (2200, 14146), (2420, 12860), (2572, 12100), (3025, 10288), (3215, 9680), (4400, 7073), (4840, 6430), (5144, 6050)]