20001600

素因数分解:

$2^6\times 3^3\times 5^2\times {\mathrm{463}}^1$

素因数の和:494

約数の個数: 168

約数和(自身を含む): 73070720

約数和(自身を除く): 53069120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 27, 30, 32, 36, 40, 45, 48, 50, 54, 60, 64, 72, 75, 80, 90, 96, 100, 108, 120, 135, 144, 150, 160, 180, 192, 200, 216, 225, 240, 270, 288, 300, 320, 360, 400, 432, 450, 463, 480, 540, 576, 600, 675, 720, 800, 864, 900, 926, 960, 1080, 1200, 1350, 1389, 1440, 1600, 1728, 1800, 1852, 2160, 2315, 2400, 2700, 2778, 2880, 3600, 3704, 4167, 4320, 4630, 4800, 5400, 5556, 6945, 7200, 7408, 8334, 8640, 9260, 10800, 11112, 11575, 12501, 13890, 14400, 14816, 16668, 18520, 20835, 21600, 22224, 23150, 25002, 27780, 29632, 33336, 34725, 37040, 41670, 43200, 44448, 46300, 50004, 55560, 62505, 66672, 69450, 74080, 83340, 88896, 92600, 100008, 104175, 111120, 125010, 133344, 138900, 148160, 166680, 185200, 200016, 208350, 222240, 250020, 266688, 277800, 312525, 333360, 370400, 400032, 416700, 444480, 500040, 555600, 625050, 666720, 740800, 800064, 833400, 1000080, 1111200, 1250100, 1333440, 1666800, 2000160, 2222400, 2500200, 3333600, 4000320, 5000400, 6667200, 10000800, 20001600]

約数ペア:

[(1, 20001600), (2, 10000800), (3, 6667200), (4, 5000400), (5, 4000320), (6, 3333600), (8, 2500200), (9, 2222400), (10, 2000160), (12, 1666800), (15, 1333440), (16, 1250100), (18, 1111200), (20, 1000080), (24, 833400), (25, 800064), (27, 740800), (30, 666720), (32, 625050), (36, 555600), (40, 500040), (45, 444480), (48, 416700), (50, 400032), (54, 370400), (60, 333360), (64, 312525), (72, 277800), (75, 266688), (80, 250020), (90, 222240), (96, 208350), (100, 200016), (108, 185200), (120, 166680), (135, 148160), (144, 138900), (150, 133344), (160, 125010), (180, 111120), (192, 104175), (200, 100008), (216, 92600), (225, 88896), (240, 83340), (270, 74080), (288, 69450), (300, 66672), (320, 62505), (360, 55560), (400, 50004), (432, 46300), (450, 44448), (463, 43200), (480, 41670), (540, 37040), (576, 34725), (600, 33336), (675, 29632), (720, 27780), (800, 25002), (864, 23150), (900, 22224), (926, 21600), (960, 20835), (1080, 18520), (1200, 16668), (1350, 14816), (1389, 14400), (1440, 13890), (1600, 12501), (1728, 11575), (1800, 11112), (1852, 10800), (2160, 9260), (2315, 8640), (2400, 8334), (2700, 7408), (2778, 7200), (2880, 6945), (3600, 5556), (3704, 5400), (4167, 4800), (4320, 4630)]