81582080

素因数分解:

$2^{11}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:315

約数の個数: 96

約数和(自身を含む): 202849920

約数和(自身を除く): 121267840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 257, 310, 320, 496, 512, 514, 620, 640, 992, 1024, 1028, 1240, 1280, 1285, 1984, 2048, 2056, 2480, 2560, 2570, 3968, 4112, 4960, 5120, 5140, 7936, 7967, 8224, 9920, 10240, 10280, 15872, 15934, 16448, 19840, 20560, 31744, 31868, 32896, 39680, 39835, 41120, 63488, 63736, 65792, 79360, 79670, 82240, 127472, 131584, 158720, 159340, 164480, 254944, 263168, 317440, 318680, 328960, 509888, 526336, 637360, 657920, 1019776, 1274720, 1315840, 2039552, 2549440, 2631680, 4079104, 5098880, 8158208, 10197760, 16316416, 20395520, 40791040, 81582080]

約数ペア:

[(1, 81582080), (2, 40791040), (4, 20395520), (5, 16316416), (8, 10197760), (10, 8158208), (16, 5098880), (20, 4079104), (31, 2631680), (32, 2549440), (40, 2039552), (62, 1315840), (64, 1274720), (80, 1019776), (124, 657920), (128, 637360), (155, 526336), (160, 509888), (248, 328960), (256, 318680), (257, 317440), (310, 263168), (320, 254944), (496, 164480), (512, 159340), (514, 158720), (620, 131584), (640, 127472), (992, 82240), (1024, 79670), (1028, 79360), (1240, 65792), (1280, 63736), (1285, 63488), (1984, 41120), (2048, 39835), (2056, 39680), (2480, 32896), (2560, 31868), (2570, 31744), (3968, 20560), (4112, 19840), (4960, 16448), (5120, 15934), (5140, 15872), (7936, 10280), (7967, 10240), (8224, 9920)]