64886720

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^2\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 84

約数和(自身を含む): 160413192

約数和(自身を除く): 95526472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 211, 248, 310, 320, 422, 496, 620, 844, 961, 992, 1055, 1240, 1688, 1922, 1984, 2110, 2480, 3376, 3844, 4220, 4805, 4960, 6541, 6752, 7688, 8440, 9610, 9920, 13082, 13504, 15376, 16880, 19220, 26164, 30752, 32705, 33760, 38440, 52328, 61504, 65410, 67520, 76880, 104656, 130820, 153760, 202771, 209312, 261640, 307520, 405542, 418624, 523280, 811084, 1013855, 1046560, 1622168, 2027710, 2093120, 3244336, 4055420, 6488672, 8110840, 12977344, 16221680, 32443360, 64886720]

約数ペア:

[(1, 64886720), (2, 32443360), (4, 16221680), (5, 12977344), (8, 8110840), (10, 6488672), (16, 4055420), (20, 3244336), (31, 2093120), (32, 2027710), (40, 1622168), (62, 1046560), (64, 1013855), (80, 811084), (124, 523280), (155, 418624), (160, 405542), (211, 307520), (248, 261640), (310, 209312), (320, 202771), (422, 153760), (496, 130820), (620, 104656), (844, 76880), (961, 67520), (992, 65410), (1055, 61504), (1240, 52328), (1688, 38440), (1922, 33760), (1984, 32705), (2110, 30752), (2480, 26164), (3376, 19220), (3844, 16880), (4220, 15376), (4805, 13504), (4960, 13082), (6541, 9920), (6752, 9610), (7688, 8440)]