20393280

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:193

約数の個数: 168

約数和(自身を含む): 71838312

約数和(自身を除く): 51445032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 73, 80, 90, 96, 97, 120, 144, 146, 160, 180, 192, 194, 219, 240, 288, 291, 292, 320, 360, 365, 388, 438, 480, 485, 576, 582, 584, 657, 720, 730, 776, 873, 876, 960, 970, 1095, 1164, 1168, 1314, 1440, 1455, 1460, 1552, 1746, 1752, 1940, 2190, 2328, 2336, 2628, 2880, 2910, 2920, 3104, 3285, 3492, 3504, 3880, 4365, 4380, 4656, 4672, 5256, 5820, 5840, 6208, 6570, 6984, 7008, 7081, 7760, 8730, 8760, 9312, 10512, 11640, 11680, 13140, 13968, 14016, 14162, 15520, 17460, 17520, 18624, 21024, 21243, 23280, 23360, 26280, 27936, 28324, 31040, 34920, 35040, 35405, 42048, 42486, 46560, 52560, 55872, 56648, 63729, 69840, 70080, 70810, 84972, 93120, 105120, 106215, 113296, 127458, 139680, 141620, 169944, 210240, 212430, 226592, 254916, 279360, 283240, 318645, 339888, 424860, 453184, 509832, 566480, 637290, 679776, 849720, 1019664, 1132960, 1274580, 1359552, 1699440, 2039328, 2265920, 2549160, 3398880, 4078656, 5098320, 6797760, 10196640, 20393280]

約数ペア:

[(1, 20393280), (2, 10196640), (3, 6797760), (4, 5098320), (5, 4078656), (6, 3398880), (8, 2549160), (9, 2265920), (10, 2039328), (12, 1699440), (15, 1359552), (16, 1274580), (18, 1132960), (20, 1019664), (24, 849720), (30, 679776), (32, 637290), (36, 566480), (40, 509832), (45, 453184), (48, 424860), (60, 339888), (64, 318645), (72, 283240), (73, 279360), (80, 254916), (90, 226592), (96, 212430), (97, 210240), (120, 169944), (144, 141620), (146, 139680), (160, 127458), (180, 113296), (192, 106215), (194, 105120), (219, 93120), (240, 84972), (288, 70810), (291, 70080), (292, 69840), (320, 63729), (360, 56648), (365, 55872), (388, 52560), (438, 46560), (480, 42486), (485, 42048), (576, 35405), (582, 35040), (584, 34920), (657, 31040), (720, 28324), (730, 27936), (776, 26280), (873, 23360), (876, 23280), (960, 21243), (970, 21024), (1095, 18624), (1164, 17520), (1168, 17460), (1314, 15520), (1440, 14162), (1455, 14016), (1460, 13968), (1552, 13140), (1746, 11680), (1752, 11640), (1940, 10512), (2190, 9312), (2328, 8760), (2336, 8730), (2628, 7760), (2880, 7081), (2910, 7008), (2920, 6984), (3104, 6570), (3285, 6208), (3492, 5840), (3504, 5820), (3880, 5256), (4365, 4672), (4380, 4656)]