25851520

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1353

約数の個数: 64

約数和(自身を含む): 63843840

約数和(自身を除く): 37992320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1303, 1984, 2480, 2606, 3968, 4960, 5212, 6515, 9920, 10424, 13030, 19840, 20848, 26060, 40393, 41696, 52120, 80786, 83392, 104240, 161572, 166784, 201965, 208480, 323144, 403930, 416960, 646288, 807860, 833920, 1292576, 1615720, 2585152, 3231440, 5170304, 6462880, 12925760, 25851520]

約数ペア:

[(1, 25851520), (2, 12925760), (4, 6462880), (5, 5170304), (8, 3231440), (10, 2585152), (16, 1615720), (20, 1292576), (31, 833920), (32, 807860), (40, 646288), (62, 416960), (64, 403930), (80, 323144), (124, 208480), (128, 201965), (155, 166784), (160, 161572), (248, 104240), (310, 83392), (320, 80786), (496, 52120), (620, 41696), (640, 40393), (992, 26060), (1240, 20848), (1303, 19840), (1984, 13030), (2480, 10424), (2606, 9920), (3968, 6515), (4960, 5212)]