20962800

素因数分解:

$2^4\times 3^4\times 5^2\times {\mathrm{647}}^1$

素因数の和:677

約数の個数: 150

約数和(自身を含む): 75350088

約数和(自身を除く): 54387288

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 36, 40, 45, 48, 50, 54, 60, 72, 75, 80, 81, 90, 100, 108, 120, 135, 144, 150, 162, 180, 200, 216, 225, 240, 270, 300, 324, 360, 400, 405, 432, 450, 540, 600, 647, 648, 675, 720, 810, 900, 1080, 1200, 1294, 1296, 1350, 1620, 1800, 1941, 2025, 2160, 2588, 2700, 3235, 3240, 3600, 3882, 4050, 5176, 5400, 5823, 6470, 6480, 7764, 8100, 9705, 10352, 10800, 11646, 12940, 15528, 16175, 16200, 17469, 19410, 23292, 25880, 29115, 31056, 32350, 32400, 34938, 38820, 46584, 48525, 51760, 52407, 58230, 64700, 69876, 77640, 87345, 93168, 97050, 104814, 116460, 129400, 139752, 145575, 155280, 174690, 194100, 209628, 232920, 258800, 262035, 279504, 291150, 349380, 388200, 419256, 436725, 465840, 524070, 582300, 698760, 776400, 838512, 873450, 1048140, 1164600, 1310175, 1397520, 1746900, 2096280, 2329200, 2620350, 3493800, 4192560, 5240700, 6987600, 10481400, 20962800]

約数ペア:

[(1, 20962800), (2, 10481400), (3, 6987600), (4, 5240700), (5, 4192560), (6, 3493800), (8, 2620350), (9, 2329200), (10, 2096280), (12, 1746900), (15, 1397520), (16, 1310175), (18, 1164600), (20, 1048140), (24, 873450), (25, 838512), (27, 776400), (30, 698760), (36, 582300), (40, 524070), (45, 465840), (48, 436725), (50, 419256), (54, 388200), (60, 349380), (72, 291150), (75, 279504), (80, 262035), (81, 258800), (90, 232920), (100, 209628), (108, 194100), (120, 174690), (135, 155280), (144, 145575), (150, 139752), (162, 129400), (180, 116460), (200, 104814), (216, 97050), (225, 93168), (240, 87345), (270, 77640), (300, 69876), (324, 64700), (360, 58230), (400, 52407), (405, 51760), (432, 48525), (450, 46584), (540, 38820), (600, 34938), (647, 32400), (648, 32350), (675, 31056), (720, 29115), (810, 25880), (900, 23292), (1080, 19410), (1200, 17469), (1294, 16200), (1296, 16175), (1350, 15528), (1620, 12940), (1800, 11646), (1941, 10800), (2025, 10352), (2160, 9705), (2588, 8100), (2700, 7764), (3235, 6480), (3240, 6470), (3600, 5823), (3882, 5400), (4050, 5176)]