2667249920

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67219}}^1$

素因数の和:67271

約数の個数: 72

約数和(自身を含む): 6595088640

約数和(自身を除く): 3927838720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 67219, 134438, 268876, 336095, 537752, 672190, 1075504, 1344380, 2083789, 2151008, 2688760, 4167578, 4302016, 5377520, 8335156, 8604032, 10418945, 10755040, 16670312, 17208064, 20837890, 21510080, 33340624, 41675780, 43020160, 66681248, 83351560, 86040320, 133362496, 166703120, 266724992, 333406240, 533449984, 666812480, 1333624960, 2667249920]

約数ペア:

[(1, 2667249920), (2, 1333624960), (4, 666812480), (5, 533449984), (8, 333406240), (10, 266724992), (16, 166703120), (20, 133362496), (31, 86040320), (32, 83351560), (40, 66681248), (62, 43020160), (64, 41675780), (80, 33340624), (124, 21510080), (128, 20837890), (155, 17208064), (160, 16670312), (248, 10755040), (256, 10418945), (310, 8604032), (320, 8335156), (496, 5377520), (620, 4302016), (640, 4167578), (992, 2688760), (1240, 2151008), (1280, 2083789), (1984, 1344380), (2480, 1075504), (3968, 672190), (4960, 537752), (7936, 336095), (9920, 268876), (19840, 134438), (39680, 67219)]