20818800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{5783}}^1$

素因数の和:5807

約数の個数: 90

約数和(自身を含む): 72259512

約数和(自身を除く): 51440712

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 45, 48, 50, 60, 72, 75, 80, 90, 100, 120, 144, 150, 180, 200, 225, 240, 300, 360, 400, 450, 600, 720, 900, 1200, 1800, 3600, 5783, 11566, 17349, 23132, 28915, 34698, 46264, 52047, 57830, 69396, 86745, 92528, 104094, 115660, 138792, 144575, 173490, 208188, 231320, 260235, 277584, 289150, 346980, 416376, 433725, 462640, 520470, 578300, 693960, 832752, 867450, 1040940, 1156600, 1301175, 1387920, 1734900, 2081880, 2313200, 2602350, 3469800, 4163760, 5204700, 6939600, 10409400, 20818800]

約数ペア:

[(1, 20818800), (2, 10409400), (3, 6939600), (4, 5204700), (5, 4163760), (6, 3469800), (8, 2602350), (9, 2313200), (10, 2081880), (12, 1734900), (15, 1387920), (16, 1301175), (18, 1156600), (20, 1040940), (24, 867450), (25, 832752), (30, 693960), (36, 578300), (40, 520470), (45, 462640), (48, 433725), (50, 416376), (60, 346980), (72, 289150), (75, 277584), (80, 260235), (90, 231320), (100, 208188), (120, 173490), (144, 144575), (150, 138792), (180, 115660), (200, 104094), (225, 92528), (240, 86745), (300, 69396), (360, 57830), (400, 52047), (450, 46264), (600, 34698), (720, 28915), (900, 23132), (1200, 17349), (1800, 11566), (3600, 5783)]