20258640

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:218

約数の個数: 160

約数和(自身を含む): 71245440

約数和(自身を除く): 50986800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 83, 90, 108, 113, 120, 135, 144, 166, 180, 216, 226, 240, 249, 270, 332, 339, 360, 415, 432, 452, 498, 540, 565, 664, 678, 720, 747, 830, 904, 996, 1017, 1080, 1130, 1245, 1328, 1356, 1494, 1660, 1695, 1808, 1992, 2034, 2160, 2241, 2260, 2490, 2712, 2988, 3051, 3320, 3390, 3735, 3984, 4068, 4482, 4520, 4980, 5085, 5424, 5976, 6102, 6640, 6780, 7470, 8136, 8964, 9040, 9379, 9960, 10170, 11205, 11952, 12204, 13560, 14940, 15255, 16272, 17928, 18758, 19920, 20340, 22410, 24408, 27120, 28137, 29880, 30510, 35856, 37516, 40680, 44820, 46895, 48816, 56274, 59760, 61020, 75032, 81360, 84411, 89640, 93790, 112548, 122040, 140685, 150064, 168822, 179280, 187580, 225096, 244080, 253233, 281370, 337644, 375160, 422055, 450192, 506466, 562740, 675288, 750320, 844110, 1012932, 1125480, 1266165, 1350576, 1688220, 2025864, 2250960, 2532330, 3376440, 4051728, 5064660, 6752880, 10129320, 20258640]

約数ペア:

[(1, 20258640), (2, 10129320), (3, 6752880), (4, 5064660), (5, 4051728), (6, 3376440), (8, 2532330), (9, 2250960), (10, 2025864), (12, 1688220), (15, 1350576), (16, 1266165), (18, 1125480), (20, 1012932), (24, 844110), (27, 750320), (30, 675288), (36, 562740), (40, 506466), (45, 450192), (48, 422055), (54, 375160), (60, 337644), (72, 281370), (80, 253233), (83, 244080), (90, 225096), (108, 187580), (113, 179280), (120, 168822), (135, 150064), (144, 140685), (166, 122040), (180, 112548), (216, 93790), (226, 89640), (240, 84411), (249, 81360), (270, 75032), (332, 61020), (339, 59760), (360, 56274), (415, 48816), (432, 46895), (452, 44820), (498, 40680), (540, 37516), (565, 35856), (664, 30510), (678, 29880), (720, 28137), (747, 27120), (830, 24408), (904, 22410), (996, 20340), (1017, 19920), (1080, 18758), (1130, 17928), (1245, 16272), (1328, 15255), (1356, 14940), (1494, 13560), (1660, 12204), (1695, 11952), (1808, 11205), (1992, 10170), (2034, 9960), (2160, 9379), (2241, 9040), (2260, 8964), (2490, 8136), (2712, 7470), (2988, 6780), (3051, 6640), (3320, 6102), (3390, 5976), (3735, 5424), (3984, 5085), (4068, 4980), (4482, 4520)]