20448000

素因数分解:

$2^8\times 3^2\times 5^3\times {\mathrm{71}}^1$

素因数の和:108

約数の個数: 216

約数和(自身を含む): 74614176

約数和(自身を除く): 54166176

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 32, 36, 40, 45, 48, 50, 60, 64, 71, 72, 75, 80, 90, 96, 100, 120, 125, 128, 142, 144, 150, 160, 180, 192, 200, 213, 225, 240, 250, 256, 284, 288, 300, 320, 355, 360, 375, 384, 400, 426, 450, 480, 500, 568, 576, 600, 639, 640, 710, 720, 750, 768, 800, 852, 900, 960, 1000, 1065, 1125, 1136, 1152, 1200, 1278, 1280, 1420, 1440, 1500, 1600, 1704, 1775, 1800, 1920, 2000, 2130, 2250, 2272, 2304, 2400, 2556, 2840, 2880, 3000, 3195, 3200, 3408, 3550, 3600, 3840, 4000, 4260, 4500, 4544, 4800, 5112, 5325, 5680, 5760, 6000, 6390, 6400, 6816, 7100, 7200, 8000, 8520, 8875, 9000, 9088, 9600, 10224, 10650, 11360, 11520, 12000, 12780, 13632, 14200, 14400, 15975, 16000, 17040, 17750, 18000, 18176, 19200, 20448, 21300, 22720, 24000, 25560, 26625, 27264, 28400, 28800, 31950, 32000, 34080, 35500, 36000, 40896, 42600, 45440, 48000, 51120, 53250, 54528, 56800, 57600, 63900, 68160, 71000, 72000, 79875, 81792, 85200, 90880, 96000, 102240, 106500, 113600, 127800, 136320, 142000, 144000, 159750, 163584, 170400, 204480, 213000, 227200, 255600, 272640, 284000, 288000, 319500, 340800, 408960, 426000, 454400, 511200, 568000, 639000, 681600, 817920, 852000, 1022400, 1136000, 1278000, 1363200, 1704000, 2044800, 2272000, 2556000, 3408000, 4089600, 5112000, 6816000, 10224000, 20448000]

約数ペア:

[(1, 20448000), (2, 10224000), (3, 6816000), (4, 5112000), (5, 4089600), (6, 3408000), (8, 2556000), (9, 2272000), (10, 2044800), (12, 1704000), (15, 1363200), (16, 1278000), (18, 1136000), (20, 1022400), (24, 852000), (25, 817920), (30, 681600), (32, 639000), (36, 568000), (40, 511200), (45, 454400), (48, 426000), (50, 408960), (60, 340800), (64, 319500), (71, 288000), (72, 284000), (75, 272640), (80, 255600), (90, 227200), (96, 213000), (100, 204480), (120, 170400), (125, 163584), (128, 159750), (142, 144000), (144, 142000), (150, 136320), (160, 127800), (180, 113600), (192, 106500), (200, 102240), (213, 96000), (225, 90880), (240, 85200), (250, 81792), (256, 79875), (284, 72000), (288, 71000), (300, 68160), (320, 63900), (355, 57600), (360, 56800), (375, 54528), (384, 53250), (400, 51120), (426, 48000), (450, 45440), (480, 42600), (500, 40896), (568, 36000), (576, 35500), (600, 34080), (639, 32000), (640, 31950), (710, 28800), (720, 28400), (750, 27264), (768, 26625), (800, 25560), (852, 24000), (900, 22720), (960, 21300), (1000, 20448), (1065, 19200), (1125, 18176), (1136, 18000), (1152, 17750), (1200, 17040), (1278, 16000), (1280, 15975), (1420, 14400), (1440, 14200), (1500, 13632), (1600, 12780), (1704, 12000), (1775, 11520), (1800, 11360), (1920, 10650), (2000, 10224), (2130, 9600), (2250, 9088), (2272, 9000), (2304, 8875), (2400, 8520), (2556, 8000), (2840, 7200), (2880, 7100), (3000, 6816), (3195, 6400), (3200, 6390), (3408, 6000), (3550, 5760), (3600, 5680), (3840, 5325), (4000, 5112), (4260, 4800), (4500, 4544)]