778142720

素因数分解:

$2^{10}\times 5^1\times {\mathrm{19}}^2\times {\mathrm{421}}^1$

素因数の和:484

約数の個数: 132

約数和(自身を含む): 1974724524

約数和(自身を除く): 1196581804

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, 361, 380, 421, 512, 608, 640, 722, 760, 842, 1024, 1216, 1280, 1444, 1520, 1684, 1805, 2105, 2432, 2560, 2888, 3040, 3368, 3610, 4210, 4864, 5120, 5776, 6080, 6736, 7220, 7999, 8420, 9728, 11552, 12160, 13472, 14440, 15998, 16840, 19456, 23104, 24320, 26944, 28880, 31996, 33680, 39995, 46208, 48640, 53888, 57760, 63992, 67360, 79990, 92416, 97280, 107776, 115520, 127984, 134720, 151981, 159980, 184832, 215552, 231040, 255968, 269440, 303962, 319960, 369664, 431104, 462080, 511936, 538880, 607924, 639920, 759905, 924160, 1023872, 1077760, 1215848, 1279840, 1519810, 1848320, 2047744, 2155520, 2431696, 2559680, 3039620, 4095488, 4863392, 5119360, 6079240, 8190976, 9726784, 10238720, 12158480, 19453568, 20477440, 24316960, 38907136, 40954880, 48633920, 77814272, 97267840, 155628544, 194535680, 389071360, 778142720]

約数ペア:

[(1, 778142720), (2, 389071360), (4, 194535680), (5, 155628544), (8, 97267840), (10, 77814272), (16, 48633920), (19, 40954880), (20, 38907136), (32, 24316960), (38, 20477440), (40, 19453568), (64, 12158480), (76, 10238720), (80, 9726784), (95, 8190976), (128, 6079240), (152, 5119360), (160, 4863392), (190, 4095488), (256, 3039620), (304, 2559680), (320, 2431696), (361, 2155520), (380, 2047744), (421, 1848320), (512, 1519810), (608, 1279840), (640, 1215848), (722, 1077760), (760, 1023872), (842, 924160), (1024, 759905), (1216, 639920), (1280, 607924), (1444, 538880), (1520, 511936), (1684, 462080), (1805, 431104), (2105, 369664), (2432, 319960), (2560, 303962), (2888, 269440), (3040, 255968), (3368, 231040), (3610, 215552), (4210, 184832), (4864, 159980), (5120, 151981), (5776, 134720), (6080, 127984), (6736, 115520), (7220, 107776), (7999, 97280), (8420, 92416), (9728, 79990), (11552, 67360), (12160, 63992), (13472, 57760), (14440, 53888), (15998, 48640), (16840, 46208), (19456, 39995), (23104, 33680), (24320, 31996), (26944, 28880)]