77916910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 155520000

約数和(自身を除く): 77603090

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 79, 95, 145, 158, 179, 190, 290, 358, 395, 551, 790, 895, 1102, 1501, 1790, 2291, 2755, 3002, 3401, 4582, 5191, 5510, 6802, 7505, 10382, 11455, 14141, 15010, 17005, 22910, 25955, 28282, 34010, 43529, 51910, 70705, 87058, 98629, 141410, 197258, 217645, 268679, 410089, 435290, 493145, 537358, 820178, 986290, 1343395, 2050445, 2686790, 4100890, 7791691, 15583382, 38958455, 77916910]

約数ペア:

[(1, 77916910), (2, 38958455), (5, 15583382), (10, 7791691), (19, 4100890), (29, 2686790), (38, 2050445), (58, 1343395), (79, 986290), (95, 820178), (145, 537358), (158, 493145), (179, 435290), (190, 410089), (290, 268679), (358, 217645), (395, 197258), (551, 141410), (790, 98629), (895, 87058), (1102, 70705), (1501, 51910), (1790, 43529), (2291, 34010), (2755, 28282), (3002, 25955), (3401, 22910), (4582, 17005), (5191, 15010), (5510, 14141), (6802, 11455), (7505, 10382)]