856180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 2010960

約数和(自身を除く): 1154780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 89, 130, 148, 178, 185, 260, 356, 370, 445, 481, 740, 890, 962, 1157, 1780, 1924, 2314, 2405, 3293, 4628, 4810, 5785, 6586, 9620, 11570, 13172, 16465, 23140, 32930, 42809, 65860, 85618, 171236, 214045, 428090, 856180]

約数ペア:

[(1, 856180), (2, 428090), (4, 214045), (5, 171236), (10, 85618), (13, 65860), (20, 42809), (26, 32930), (37, 23140), (52, 16465), (65, 13172), (74, 11570), (89, 9620), (130, 6586), (148, 5785), (178, 4810), (185, 4628), (260, 3293), (356, 2405), (370, 2314), (445, 1924), (481, 1780), (740, 1157), (890, 962)]