20812800

素因数分解:

$2^{10}\times 3^1\times 5^2\times {\mathrm{271}}^1$

素因数の和:304

約数の個数: 132

約数和(自身を含む): 69041216

約数和(自身を除く): 48228416

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 150, 160, 192, 200, 240, 256, 271, 300, 320, 384, 400, 480, 512, 542, 600, 640, 768, 800, 813, 960, 1024, 1084, 1200, 1280, 1355, 1536, 1600, 1626, 1920, 2168, 2400, 2560, 2710, 3072, 3200, 3252, 3840, 4065, 4336, 4800, 5120, 5420, 6400, 6504, 6775, 7680, 8130, 8672, 9600, 10840, 12800, 13008, 13550, 15360, 16260, 17344, 19200, 20325, 21680, 25600, 26016, 27100, 32520, 34688, 38400, 40650, 43360, 52032, 54200, 65040, 69376, 76800, 81300, 86720, 104064, 108400, 130080, 138752, 162600, 173440, 208128, 216800, 260160, 277504, 325200, 346880, 416256, 433600, 520320, 650400, 693760, 832512, 867200, 1040640, 1300800, 1387520, 1734400, 2081280, 2601600, 3468800, 4162560, 5203200, 6937600, 10406400, 20812800]

約数ペア:

[(1, 20812800), (2, 10406400), (3, 6937600), (4, 5203200), (5, 4162560), (6, 3468800), (8, 2601600), (10, 2081280), (12, 1734400), (15, 1387520), (16, 1300800), (20, 1040640), (24, 867200), (25, 832512), (30, 693760), (32, 650400), (40, 520320), (48, 433600), (50, 416256), (60, 346880), (64, 325200), (75, 277504), (80, 260160), (96, 216800), (100, 208128), (120, 173440), (128, 162600), (150, 138752), (160, 130080), (192, 108400), (200, 104064), (240, 86720), (256, 81300), (271, 76800), (300, 69376), (320, 65040), (384, 54200), (400, 52032), (480, 43360), (512, 40650), (542, 38400), (600, 34688), (640, 32520), (768, 27100), (800, 26016), (813, 25600), (960, 21680), (1024, 20325), (1084, 19200), (1200, 17344), (1280, 16260), (1355, 15360), (1536, 13550), (1600, 13008), (1626, 12800), (1920, 10840), (2168, 9600), (2400, 8672), (2560, 8130), (2710, 7680), (3072, 6775), (3200, 6504), (3252, 6400), (3840, 5420), (4065, 5120), (4336, 4800)]