1251336380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{64303}}^1$

素因数の和:64458

約数の個数: 48

約数和(自身を含む): 3024860160

約数和(自身を除く): 1773523780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 9730, 19460, 64303, 128606, 257212, 321515, 450121, 643030, 900242, 1286060, 1800484, 2250605, 4501210, 8938117, 9002420, 17876234, 35752468, 44690585, 62566819, 89381170, 125133638, 178762340, 250267276, 312834095, 625668190, 1251336380]

約数ペア:

[(1, 1251336380), (2, 625668190), (4, 312834095), (5, 250267276), (7, 178762340), (10, 125133638), (14, 89381170), (20, 62566819), (28, 44690585), (35, 35752468), (70, 17876234), (139, 9002420), (140, 8938117), (278, 4501210), (556, 2250605), (695, 1800484), (973, 1286060), (1390, 900242), (1946, 643030), (2780, 450121), (3892, 321515), (4865, 257212), (9730, 128606), (19460, 64303)]