20439360

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:221

約数の個数: 168

約数和(自身を含む): 72274176

約数和(自身を除く): 51834816

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 64, 72, 80, 90, 94, 96, 120, 141, 144, 151, 160, 180, 188, 192, 235, 240, 282, 288, 302, 320, 360, 376, 423, 453, 470, 480, 564, 576, 604, 705, 720, 752, 755, 846, 906, 940, 960, 1128, 1208, 1359, 1410, 1440, 1504, 1510, 1692, 1812, 1880, 2115, 2256, 2265, 2416, 2718, 2820, 2880, 3008, 3020, 3384, 3624, 3760, 4230, 4512, 4530, 4832, 5436, 5640, 6040, 6768, 6795, 7097, 7248, 7520, 8460, 9024, 9060, 9664, 10872, 11280, 12080, 13536, 13590, 14194, 14496, 15040, 16920, 18120, 21291, 21744, 22560, 24160, 27072, 27180, 28388, 28992, 33840, 35485, 36240, 42582, 43488, 45120, 48320, 54360, 56776, 63873, 67680, 70970, 72480, 85164, 86976, 106455, 108720, 113552, 127746, 135360, 141940, 144960, 170328, 212910, 217440, 227104, 255492, 283880, 319365, 340656, 425820, 434880, 454208, 510984, 567760, 638730, 681312, 851640, 1021968, 1135520, 1277460, 1362624, 1703280, 2043936, 2271040, 2554920, 3406560, 4087872, 5109840, 6813120, 10219680, 20439360]

約数ペア:

[(1, 20439360), (2, 10219680), (3, 6813120), (4, 5109840), (5, 4087872), (6, 3406560), (8, 2554920), (9, 2271040), (10, 2043936), (12, 1703280), (15, 1362624), (16, 1277460), (18, 1135520), (20, 1021968), (24, 851640), (30, 681312), (32, 638730), (36, 567760), (40, 510984), (45, 454208), (47, 434880), (48, 425820), (60, 340656), (64, 319365), (72, 283880), (80, 255492), (90, 227104), (94, 217440), (96, 212910), (120, 170328), (141, 144960), (144, 141940), (151, 135360), (160, 127746), (180, 113552), (188, 108720), (192, 106455), (235, 86976), (240, 85164), (282, 72480), (288, 70970), (302, 67680), (320, 63873), (360, 56776), (376, 54360), (423, 48320), (453, 45120), (470, 43488), (480, 42582), (564, 36240), (576, 35485), (604, 33840), (705, 28992), (720, 28388), (752, 27180), (755, 27072), (846, 24160), (906, 22560), (940, 21744), (960, 21291), (1128, 18120), (1208, 16920), (1359, 15040), (1410, 14496), (1440, 14194), (1504, 13590), (1510, 13536), (1692, 12080), (1812, 11280), (1880, 10872), (2115, 9664), (2256, 9060), (2265, 9024), (2416, 8460), (2718, 7520), (2820, 7248), (2880, 7097), (3008, 6795), (3020, 6768), (3384, 6040), (3624, 5640), (3760, 5436), (4230, 4832), (4512, 4530)]