278622897

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 472657920

約数和(自身を除く): 194035023

約数列:

[1, 3, 7, 19, 21, 23, 57, 69, 97, 133, 161, 291, 313, 399, 437, 483, 679, 939, 1311, 1843, 2037, 2191, 2231, 3059, 5529, 5947, 6573, 6693, 7199, 9177, 12901, 15617, 17841, 21597, 30361, 38703, 41629, 42389, 46851, 50393, 91083, 124887, 127167, 136781, 151179, 212527, 296723, 410343, 576859, 637581, 698303, 890169, 957467, 1730577, 2094909, 2872401, 4038013, 4888121, 12114039, 13267757, 14664363, 39803271, 92874299, 278622897]

約数ペア:

[(1, 278622897), (3, 92874299), (7, 39803271), (19, 14664363), (21, 13267757), (23, 12114039), (57, 4888121), (69, 4038013), (97, 2872401), (133, 2094909), (161, 1730577), (291, 957467), (313, 890169), (399, 698303), (437, 637581), (483, 576859), (679, 410343), (939, 296723), (1311, 212527), (1843, 151179), (2037, 136781), (2191, 127167), (2231, 124887), (3059, 91083), (5529, 50393), (5947, 46851), (6573, 42389), (6693, 41629), (7199, 38703), (9177, 30361), (12901, 21597), (15617, 17841)]