78724821

素因数分解:

$3^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:418

約数の個数: 48

約数和(自身を含む): 128865600

約数和(自身を除く): 50140779

約数列:

[1, 3, 7, 21, 29, 49, 59, 87, 147, 177, 203, 313, 413, 609, 939, 1239, 1421, 1711, 2191, 2891, 4263, 5133, 6573, 8673, 9077, 11977, 15337, 18467, 27231, 35931, 46011, 55401, 63539, 83839, 129269, 190617, 251517, 387807, 444773, 535543, 904883, 1334319, 1606629, 2714649, 3748801, 11246403, 26241607, 78724821]

約数ペア:

[(1, 78724821), (3, 26241607), (7, 11246403), (21, 3748801), (29, 2714649), (49, 1606629), (59, 1334319), (87, 904883), (147, 535543), (177, 444773), (203, 387807), (313, 251517), (413, 190617), (609, 129269), (939, 83839), (1239, 63539), (1421, 55401), (1711, 46011), (2191, 35931), (2891, 27231), (4263, 18467), (5133, 15337), (6573, 11977), (8673, 9077)]