31367720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:474

約数の個数: 64

約数和(自身を含む): 75453120

約数和(自身を除く): 44085400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 163, 170, 283, 326, 340, 566, 652, 680, 815, 1132, 1304, 1415, 1630, 2264, 2771, 2830, 3260, 4811, 5542, 5660, 6520, 9622, 11084, 11320, 13855, 19244, 22168, 24055, 27710, 38488, 46129, 48110, 55420, 92258, 96220, 110840, 184516, 192440, 230645, 369032, 461290, 784193, 922580, 1568386, 1845160, 3136772, 3920965, 6273544, 7841930, 15683860, 31367720]

約数ペア:

[(1, 31367720), (2, 15683860), (4, 7841930), (5, 6273544), (8, 3920965), (10, 3136772), (17, 1845160), (20, 1568386), (34, 922580), (40, 784193), (68, 461290), (85, 369032), (136, 230645), (163, 192440), (170, 184516), (283, 110840), (326, 96220), (340, 92258), (566, 55420), (652, 48110), (680, 46129), (815, 38488), (1132, 27710), (1304, 24055), (1415, 22168), (1630, 19244), (2264, 13855), (2771, 11320), (2830, 11084), (3260, 9622), (4811, 6520), (5542, 5660)]