16221680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^2\times {\mathrm{211}}^1$

素因数の和:286

約数の個数: 60

約数和(自身を含む): 39155976

約数和(自身を除く): 22934296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 211, 248, 310, 422, 496, 620, 844, 961, 1055, 1240, 1688, 1922, 2110, 2480, 3376, 3844, 4220, 4805, 6541, 7688, 8440, 9610, 13082, 15376, 16880, 19220, 26164, 32705, 38440, 52328, 65410, 76880, 104656, 130820, 202771, 261640, 405542, 523280, 811084, 1013855, 1622168, 2027710, 3244336, 4055420, 8110840, 16221680]

約数ペア:

[(1, 16221680), (2, 8110840), (4, 4055420), (5, 3244336), (8, 2027710), (10, 1622168), (16, 1013855), (20, 811084), (31, 523280), (40, 405542), (62, 261640), (80, 202771), (124, 130820), (155, 104656), (211, 76880), (248, 65410), (310, 52328), (422, 38440), (496, 32705), (620, 26164), (844, 19220), (961, 16880), (1055, 15376), (1240, 13082), (1688, 9610), (1922, 8440), (2110, 7688), (2480, 6541), (3376, 4805), (3844, 4220)]