20261760

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:256

約数の個数: 128

約数和(自身を含む): 66022560

約数和(自身を除く): 45760800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 61, 64, 80, 96, 120, 122, 128, 160, 173, 183, 192, 240, 244, 305, 320, 346, 366, 384, 480, 488, 519, 610, 640, 692, 732, 865, 915, 960, 976, 1038, 1220, 1384, 1464, 1730, 1830, 1920, 1952, 2076, 2440, 2595, 2768, 2928, 3460, 3660, 3904, 4152, 4880, 5190, 5536, 5856, 6920, 7320, 7808, 8304, 9760, 10380, 10553, 11072, 11712, 13840, 14640, 16608, 19520, 20760, 21106, 22144, 23424, 27680, 29280, 31659, 33216, 39040, 41520, 42212, 52765, 55360, 58560, 63318, 66432, 83040, 84424, 105530, 110720, 117120, 126636, 158295, 166080, 168848, 211060, 253272, 316590, 332160, 337696, 422120, 506544, 633180, 675392, 844240, 1013088, 1266360, 1350784, 1688480, 2026176, 2532720, 3376960, 4052352, 5065440, 6753920, 10130880, 20261760]

約数ペア:

[(1, 20261760), (2, 10130880), (3, 6753920), (4, 5065440), (5, 4052352), (6, 3376960), (8, 2532720), (10, 2026176), (12, 1688480), (15, 1350784), (16, 1266360), (20, 1013088), (24, 844240), (30, 675392), (32, 633180), (40, 506544), (48, 422120), (60, 337696), (61, 332160), (64, 316590), (80, 253272), (96, 211060), (120, 168848), (122, 166080), (128, 158295), (160, 126636), (173, 117120), (183, 110720), (192, 105530), (240, 84424), (244, 83040), (305, 66432), (320, 63318), (346, 58560), (366, 55360), (384, 52765), (480, 42212), (488, 41520), (519, 39040), (610, 33216), (640, 31659), (692, 29280), (732, 27680), (865, 23424), (915, 22144), (960, 21106), (976, 20760), (1038, 19520), (1220, 16608), (1384, 14640), (1464, 13840), (1730, 11712), (1830, 11072), (1920, 10553), (1952, 10380), (2076, 9760), (2440, 8304), (2595, 7808), (2768, 7320), (2928, 6920), (3460, 5856), (3660, 5536), (3904, 5190), (4152, 4880)]