7178740

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 15800400

約数和(自身を除く): 8621660

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 89, 109, 148, 178, 185, 218, 356, 370, 436, 445, 545, 740, 890, 1090, 1780, 2180, 3293, 4033, 6586, 8066, 9701, 13172, 16132, 16465, 19402, 20165, 32930, 38804, 40330, 48505, 65860, 80660, 97010, 194020, 358937, 717874, 1435748, 1794685, 3589370, 7178740]

約数ペア:

[(1, 7178740), (2, 3589370), (4, 1794685), (5, 1435748), (10, 717874), (20, 358937), (37, 194020), (74, 97010), (89, 80660), (109, 65860), (148, 48505), (178, 40330), (185, 38804), (218, 32930), (356, 20165), (370, 19402), (436, 16465), (445, 16132), (545, 13172), (740, 9701), (890, 8066), (1090, 6586), (1780, 4033), (2180, 3293)]