1388996820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1657}}^1\times {\mathrm{4657}}^1$

素因数の和:6329

約数の個数: 72

約数和(自身を含む): 4216738344

約数和(自身を除く): 2827741524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1657, 3314, 4657, 4971, 6628, 8285, 9314, 9942, 13971, 14913, 16570, 18628, 19884, 23285, 24855, 27942, 29826, 33140, 41913, 46570, 49710, 55884, 59652, 69855, 74565, 83826, 93140, 99420, 139710, 149130, 167652, 209565, 279420, 298260, 419130, 838260, 7716649, 15433298, 23149947, 30866596, 38583245, 46299894, 69449841, 77166490, 92599788, 115749735, 138899682, 154332980, 231499470, 277799364, 347249205, 462998940, 694498410, 1388996820]

約数ペア:

[(1, 1388996820), (2, 694498410), (3, 462998940), (4, 347249205), (5, 277799364), (6, 231499470), (9, 154332980), (10, 138899682), (12, 115749735), (15, 92599788), (18, 77166490), (20, 69449841), (30, 46299894), (36, 38583245), (45, 30866596), (60, 23149947), (90, 15433298), (180, 7716649), (1657, 838260), (3314, 419130), (4657, 298260), (4971, 279420), (6628, 209565), (8285, 167652), (9314, 149130), (9942, 139710), (13971, 99420), (14913, 93140), (16570, 83826), (18628, 74565), (19884, 69855), (23285, 59652), (24855, 55884), (27942, 49710), (29826, 46570), (33140, 41913)]