3939260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 9055200

約数和(自身を除く): 5115940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 139, 218, 260, 278, 436, 545, 556, 695, 1090, 1390, 1417, 1807, 2180, 2780, 2834, 3614, 5668, 7085, 7228, 9035, 14170, 15151, 18070, 28340, 30302, 36140, 60604, 75755, 151510, 196963, 303020, 393926, 787852, 984815, 1969630, 3939260]

約数ペア:

[(1, 3939260), (2, 1969630), (4, 984815), (5, 787852), (10, 393926), (13, 303020), (20, 196963), (26, 151510), (52, 75755), (65, 60604), (109, 36140), (130, 30302), (139, 28340), (218, 18070), (260, 15151), (278, 14170), (436, 9035), (545, 7228), (556, 7085), (695, 5668), (1090, 3614), (1390, 2834), (1417, 2780), (1807, 2180)]