64416940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{3623}}^1$

素因数の和:3766

約数の個数: 48

約数和(自身を含む): 155860992

約数和(自身を除く): 91444052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1270, 1778, 2540, 3556, 3623, 4445, 7246, 8890, 14492, 17780, 18115, 25361, 36230, 50722, 72460, 101444, 126805, 253610, 460121, 507220, 920242, 1840484, 2300605, 3220847, 4601210, 6441694, 9202420, 12883388, 16104235, 32208470, 64416940]

約数ペア:

[(1, 64416940), (2, 32208470), (4, 16104235), (5, 12883388), (7, 9202420), (10, 6441694), (14, 4601210), (20, 3220847), (28, 2300605), (35, 1840484), (70, 920242), (127, 507220), (140, 460121), (254, 253610), (508, 126805), (635, 101444), (889, 72460), (1270, 50722), (1778, 36230), (2540, 25361), (3556, 18115), (3623, 17780), (4445, 14492), (7246, 8890)]