1391780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 3238704

約数和(自身を除く): 1846924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 101, 106, 130, 202, 212, 260, 265, 404, 505, 530, 689, 1010, 1060, 1313, 1378, 2020, 2626, 2756, 3445, 5252, 5353, 6565, 6890, 10706, 13130, 13780, 21412, 26260, 26765, 53530, 69589, 107060, 139178, 278356, 347945, 695890, 1391780]

約数ペア:

[(1, 1391780), (2, 695890), (4, 347945), (5, 278356), (10, 139178), (13, 107060), (20, 69589), (26, 53530), (52, 26765), (53, 26260), (65, 21412), (101, 13780), (106, 13130), (130, 10706), (202, 6890), (212, 6565), (260, 5353), (265, 5252), (404, 3445), (505, 2756), (530, 2626), (689, 2020), (1010, 1378), (1060, 1313)]