80151620

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1217}}^1$

素因数の和:1352

約数の個数: 48

約数和(自身を含む): 174953520

約数和(自身を除く): 94801900

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 148, 178, 185, 356, 370, 445, 740, 890, 1217, 1780, 2434, 3293, 4868, 6085, 6586, 12170, 13172, 16465, 24340, 32930, 45029, 65860, 90058, 108313, 180116, 216626, 225145, 433252, 450290, 541565, 900580, 1083130, 2166260, 4007581, 8015162, 16030324, 20037905, 40075810, 80151620]

約数ペア:

[(1, 80151620), (2, 40075810), (4, 20037905), (5, 16030324), (10, 8015162), (20, 4007581), (37, 2166260), (74, 1083130), (89, 900580), (148, 541565), (178, 450290), (185, 433252), (356, 225145), (370, 216626), (445, 180116), (740, 108313), (890, 90058), (1217, 65860), (1780, 45029), (2434, 32930), (3293, 24340), (4868, 16465), (6085, 13172), (6586, 12170)]