1278346749

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{397}}^1\times {\mathrm{557}}^1$

素因数の和:1045

約数の個数: 32

約数和(自身を含む): 1790885376

約数和(自身を除く): 512538627

約数列:

[1, 3, 41, 47, 123, 141, 397, 557, 1191, 1671, 1927, 5781, 16277, 18659, 22837, 26179, 48831, 55977, 68511, 78537, 221129, 663387, 765019, 1073339, 2295057, 3220017, 9066289, 10393063, 27198867, 31179189, 426115583, 1278346749]

約数ペア:

[(1, 1278346749), (3, 426115583), (41, 31179189), (47, 27198867), (123, 10393063), (141, 9066289), (397, 3220017), (557, 2295057), (1191, 1073339), (1671, 765019), (1927, 663387), (5781, 221129), (16277, 78537), (18659, 68511), (22837, 55977), (26179, 48831)]