20906496

素因数分解:

$2^9\times 3^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:386

約数の個数: 120

約数和(自身を含む): 65165100

約数和(自身を除く): 44258604

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 128, 144, 156, 192, 208, 234, 256, 288, 312, 349, 384, 416, 468, 512, 576, 624, 698, 768, 832, 936, 1047, 1152, 1248, 1396, 1536, 1664, 1872, 2094, 2304, 2496, 2792, 3141, 3328, 3744, 4188, 4537, 4608, 4992, 5584, 6282, 6656, 7488, 8376, 9074, 9984, 11168, 12564, 13611, 14976, 16752, 18148, 19968, 22336, 25128, 27222, 29952, 33504, 36296, 40833, 44672, 50256, 54444, 59904, 67008, 72592, 81666, 89344, 100512, 108888, 134016, 145184, 163332, 178688, 201024, 217776, 268032, 290368, 326664, 402048, 435552, 536064, 580736, 653328, 804096, 871104, 1161472, 1306656, 1608192, 1742208, 2322944, 2613312, 3484416, 5226624, 6968832, 10453248, 20906496]

約数ペア:

[(1, 20906496), (2, 10453248), (3, 6968832), (4, 5226624), (6, 3484416), (8, 2613312), (9, 2322944), (12, 1742208), (13, 1608192), (16, 1306656), (18, 1161472), (24, 871104), (26, 804096), (32, 653328), (36, 580736), (39, 536064), (48, 435552), (52, 402048), (64, 326664), (72, 290368), (78, 268032), (96, 217776), (104, 201024), (117, 178688), (128, 163332), (144, 145184), (156, 134016), (192, 108888), (208, 100512), (234, 89344), (256, 81666), (288, 72592), (312, 67008), (349, 59904), (384, 54444), (416, 50256), (468, 44672), (512, 40833), (576, 36296), (624, 33504), (698, 29952), (768, 27222), (832, 25128), (936, 22336), (1047, 19968), (1152, 18148), (1248, 16752), (1396, 14976), (1536, 13611), (1664, 12564), (1872, 11168), (2094, 9984), (2304, 9074), (2496, 8376), (2792, 7488), (3141, 6656), (3328, 6282), (3744, 5584), (4188, 4992), (4537, 4608)]