649450496

素因数分解:

$2^{10}\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{499}}^1$

素因数の和:591

約数の個数: 88

約数和(自身を含む): 1375584000

約数和(自身を除く): 726133504

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 124, 128, 164, 248, 256, 328, 496, 499, 512, 656, 992, 998, 1024, 1271, 1312, 1984, 1996, 2542, 2624, 3968, 3992, 5084, 5248, 7936, 7984, 10168, 10496, 15469, 15872, 15968, 20336, 20459, 20992, 30938, 31744, 31936, 40672, 40918, 41984, 61876, 63872, 81344, 81836, 123752, 127744, 162688, 163672, 247504, 255488, 325376, 327344, 495008, 510976, 634229, 650752, 654688, 990016, 1268458, 1301504, 1309376, 1980032, 2536916, 2618752, 3960064, 5073832, 5237504, 7920128, 10147664, 10475008, 15840256, 20295328, 20950016, 40590656, 81181312, 162362624, 324725248, 649450496]

約数ペア:

[(1, 649450496), (2, 324725248), (4, 162362624), (8, 81181312), (16, 40590656), (31, 20950016), (32, 20295328), (41, 15840256), (62, 10475008), (64, 10147664), (82, 7920128), (124, 5237504), (128, 5073832), (164, 3960064), (248, 2618752), (256, 2536916), (328, 1980032), (496, 1309376), (499, 1301504), (512, 1268458), (656, 990016), (992, 654688), (998, 650752), (1024, 634229), (1271, 510976), (1312, 495008), (1984, 327344), (1996, 325376), (2542, 255488), (2624, 247504), (3968, 163672), (3992, 162688), (5084, 127744), (5248, 123752), (7936, 81836), (7984, 81344), (10168, 63872), (10496, 61876), (15469, 41984), (15872, 40918), (15968, 40672), (20336, 31936), (20459, 31744), (20992, 30938)]