649371136

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{251}}^1$

素因数の和:463

約数の個数: 80

約数和(自身を含む): 1352913408

約数和(自身を除く): 703542272

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 163, 248, 251, 256, 326, 496, 502, 512, 652, 992, 1004, 1304, 1984, 2008, 2608, 3968, 4016, 5053, 5216, 7781, 7936, 8032, 10106, 10432, 15562, 15872, 16064, 20212, 20864, 31124, 32128, 40424, 40913, 41728, 62248, 64256, 80848, 81826, 83456, 124496, 128512, 161696, 163652, 248992, 323392, 327304, 497984, 646784, 654608, 995968, 1268303, 1293568, 1309216, 1991936, 2536606, 2587136, 2618432, 3983872, 5073212, 5236864, 10146424, 10473728, 20292848, 20947456, 40585696, 81171392, 162342784, 324685568, 649371136]

約数ペア:

[(1, 649371136), (2, 324685568), (4, 162342784), (8, 81171392), (16, 40585696), (31, 20947456), (32, 20292848), (62, 10473728), (64, 10146424), (124, 5236864), (128, 5073212), (163, 3983872), (248, 2618432), (251, 2587136), (256, 2536606), (326, 1991936), (496, 1309216), (502, 1293568), (512, 1268303), (652, 995968), (992, 654608), (1004, 646784), (1304, 497984), (1984, 327304), (2008, 323392), (2608, 248992), (3968, 163652), (4016, 161696), (5053, 128512), (5216, 124496), (7781, 83456), (7936, 81826), (8032, 80848), (10106, 64256), (10432, 62248), (15562, 41728), (15872, 40913), (16064, 40424), (20212, 32128), (20864, 31124)]