20609929984

素因数分解:

$2^8\times 7^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{317}}^1$

素因数の和:491

約数の個数: 216

約数和(自身を含む): 49349992608

約数和(自身を除く): 28740062624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 71, 73, 98, 112, 128, 142, 146, 196, 224, 256, 284, 292, 317, 392, 448, 497, 511, 568, 584, 634, 784, 896, 994, 1022, 1136, 1168, 1268, 1568, 1792, 1988, 2044, 2219, 2272, 2336, 2536, 3136, 3479, 3577, 3976, 4088, 4438, 4544, 4672, 5072, 5183, 6272, 6958, 7154, 7952, 8176, 8876, 9088, 9344, 10144, 10366, 12544, 13916, 14308, 15533, 15904, 16352, 17752, 18176, 18688, 20288, 20732, 22507, 23141, 27832, 28616, 31066, 31808, 32704, 35504, 36281, 40576, 41464, 45014, 46282, 55664, 57232, 62132, 63616, 65408, 71008, 72562, 81152, 82928, 90028, 92564, 111328, 114464, 124264, 127232, 130816, 142016, 145124, 157549, 161987, 165856, 180056, 185128, 222656, 228928, 248528, 253967, 284032, 290248, 315098, 323974, 331712, 360112, 370256, 445312, 457856, 497056, 507934, 568064, 580496, 630196, 647948, 663424, 720224, 740512, 890624, 915712, 994112, 1015868, 1102843, 1133909, 1160992, 1260392, 1295896, 1326848, 1440448, 1481024, 1643011, 1988224, 2031736, 2205686, 2267818, 2321984, 2520784, 2591792, 2880896, 2962048, 3286022, 3976448, 4063472, 4411372, 4535636, 4643968, 5041568, 5183584, 5761792, 5924096, 6572044, 8126944, 8822744, 9071272, 9287936, 10083136, 10367168, 11501077, 13144088, 16253888, 17645488, 18142544, 20166272, 20734336, 23002154, 26288176, 32507776, 35290976, 36285088, 40332544, 41468672, 46004308, 52576352, 65015552, 70581952, 72570176, 80507539, 92008616, 105152704, 141163904, 145140352, 161015078, 184017232, 210305408, 282327808, 290280704, 322030156, 368034464, 420610816, 644060312, 736068928, 1288120624, 1472137856, 2576241248, 2944275712, 5152482496, 10304964992, 20609929984]

約数ペア:

[(1, 20609929984), (2, 10304964992), (4, 5152482496), (7, 2944275712), (8, 2576241248), (14, 1472137856), (16, 1288120624), (28, 736068928), (32, 644060312), (49, 420610816), (56, 368034464), (64, 322030156), (71, 290280704), (73, 282327808), (98, 210305408), (112, 184017232), (128, 161015078), (142, 145140352), (146, 141163904), (196, 105152704), (224, 92008616), (256, 80507539), (284, 72570176), (292, 70581952), (317, 65015552), (392, 52576352), (448, 46004308), (497, 41468672), (511, 40332544), (568, 36285088), (584, 35290976), (634, 32507776), (784, 26288176), (896, 23002154), (994, 20734336), (1022, 20166272), (1136, 18142544), (1168, 17645488), (1268, 16253888), (1568, 13144088), (1792, 11501077), (1988, 10367168), (2044, 10083136), (2219, 9287936), (2272, 9071272), (2336, 8822744), (2536, 8126944), (3136, 6572044), (3479, 5924096), (3577, 5761792), (3976, 5183584), (4088, 5041568), (4438, 4643968), (4544, 4535636), (4672, 4411372), (5072, 4063472), (5183, 3976448), (6272, 3286022), (6958, 2962048), (7154, 2880896), (7952, 2591792), (8176, 2520784), (8876, 2321984), (9088, 2267818), (9344, 2205686), (10144, 2031736), (10366, 1988224), (12544, 1643011), (13916, 1481024), (14308, 1440448), (15533, 1326848), (15904, 1295896), (16352, 1260392), (17752, 1160992), (18176, 1133909), (18688, 1102843), (20288, 1015868), (20732, 994112), (22507, 915712), (23141, 890624), (27832, 740512), (28616, 720224), (31066, 663424), (31808, 647948), (32704, 630196), (35504, 580496), (36281, 568064), (40576, 507934), (41464, 497056), (45014, 457856), (46282, 445312), (55664, 370256), (57232, 360112), (62132, 331712), (63616, 323974), (65408, 315098), (71008, 290248), (72562, 284032), (81152, 253967), (82928, 248528), (90028, 228928), (92564, 222656), (111328, 185128), (114464, 180056), (124264, 165856), (127232, 161987), (130816, 157549), (142016, 145124)]