25319680

素因数分解:

$2^8\times 5^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:303

約数の個数: 72

約数和(自身を含む): 61516224

約数和(自身を除く): 36196544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 131, 151, 160, 256, 262, 302, 320, 524, 604, 640, 655, 755, 1048, 1208, 1280, 1310, 1510, 2096, 2416, 2620, 3020, 4192, 4832, 5240, 6040, 8384, 9664, 10480, 12080, 16768, 19328, 19781, 20960, 24160, 33536, 38656, 39562, 41920, 48320, 79124, 83840, 96640, 98905, 158248, 167680, 193280, 197810, 316496, 395620, 632992, 791240, 1265984, 1582480, 2531968, 3164960, 5063936, 6329920, 12659840, 25319680]

約数ペア:

[(1, 25319680), (2, 12659840), (4, 6329920), (5, 5063936), (8, 3164960), (10, 2531968), (16, 1582480), (20, 1265984), (32, 791240), (40, 632992), (64, 395620), (80, 316496), (128, 197810), (131, 193280), (151, 167680), (160, 158248), (256, 98905), (262, 96640), (302, 83840), (320, 79124), (524, 48320), (604, 41920), (640, 39562), (655, 38656), (755, 33536), (1048, 24160), (1208, 20960), (1280, 19781), (1310, 19328), (1510, 16768), (2096, 12080), (2416, 10480), (2620, 9664), (3020, 8384), (4192, 6040), (4832, 5240)]