78598940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{577}}^1$

素因数の和:739

約数の個数: 72

約数和(自身を含む): 193722480

約数和(自身を除く): 115123540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 139, 140, 196, 245, 278, 490, 556, 577, 695, 973, 980, 1154, 1390, 1946, 2308, 2780, 2885, 3892, 4039, 4865, 5770, 6811, 8078, 9730, 11540, 13622, 16156, 19460, 20195, 27244, 28273, 34055, 40390, 56546, 68110, 80203, 80780, 113092, 136220, 141365, 160406, 282730, 320812, 401015, 561421, 565460, 802030, 1122842, 1604060, 2245684, 2807105, 3929947, 5614210, 7859894, 11228420, 15719788, 19649735, 39299470, 78598940]

約数ペア:

[(1, 78598940), (2, 39299470), (4, 19649735), (5, 15719788), (7, 11228420), (10, 7859894), (14, 5614210), (20, 3929947), (28, 2807105), (35, 2245684), (49, 1604060), (70, 1122842), (98, 802030), (139, 565460), (140, 561421), (196, 401015), (245, 320812), (278, 282730), (490, 160406), (556, 141365), (577, 136220), (695, 113092), (973, 80780), (980, 80203), (1154, 68110), (1390, 56546), (1946, 40390), (2308, 34055), (2780, 28273), (2885, 27244), (3892, 20195), (4039, 19460), (4865, 16156), (5770, 13622), (6811, 11540), (8078, 9730)]