655278080

素因数分解:

$2^{14}\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:473

約数の個数: 120

約数和(自身を含む): 1659320880

約数和(自身を除く): 1004042800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 380, 421, 512, 608, 640, 760, 842, 1024, 1216, 1280, 1520, 1684, 2048, 2105, 2432, 2560, 3040, 3368, 4096, 4210, 4864, 5120, 6080, 6736, 7999, 8192, 8420, 9728, 10240, 12160, 13472, 15998, 16384, 16840, 19456, 20480, 24320, 26944, 31996, 33680, 38912, 39995, 40960, 48640, 53888, 63992, 67360, 77824, 79990, 81920, 97280, 107776, 127984, 134720, 155648, 159980, 194560, 215552, 255968, 269440, 311296, 319960, 389120, 431104, 511936, 538880, 639920, 778240, 862208, 1023872, 1077760, 1279840, 1556480, 1724416, 2047744, 2155520, 2559680, 3448832, 4095488, 4311040, 5119360, 6897664, 8190976, 8622080, 10238720, 16381952, 17244160, 20477440, 32763904, 34488320, 40954880, 65527808, 81909760, 131055616, 163819520, 327639040, 655278080]

約数ペア:

[(1, 655278080), (2, 327639040), (4, 163819520), (5, 131055616), (8, 81909760), (10, 65527808), (16, 40954880), (19, 34488320), (20, 32763904), (32, 20477440), (38, 17244160), (40, 16381952), (64, 10238720), (76, 8622080), (80, 8190976), (95, 6897664), (128, 5119360), (152, 4311040), (160, 4095488), (190, 3448832), (256, 2559680), (304, 2155520), (320, 2047744), (380, 1724416), (421, 1556480), (512, 1279840), (608, 1077760), (640, 1023872), (760, 862208), (842, 778240), (1024, 639920), (1216, 538880), (1280, 511936), (1520, 431104), (1684, 389120), (2048, 319960), (2105, 311296), (2432, 269440), (2560, 255968), (3040, 215552), (3368, 194560), (4096, 159980), (4210, 155648), (4864, 134720), (5120, 127984), (6080, 107776), (6736, 97280), (7999, 81920), (8192, 79990), (8420, 77824), (9728, 67360), (10240, 63992), (12160, 53888), (13472, 48640), (15998, 40960), (16384, 39995), (16840, 38912), (19456, 33680), (20480, 31996), (24320, 26944)]