20428968

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:367

約数の個数: 128

約数和(自身を含む): 64696320

約数和(自身を除く): 44267352

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 23, 24, 28, 34, 42, 46, 51, 56, 68, 69, 84, 92, 102, 119, 136, 138, 161, 168, 184, 204, 238, 276, 311, 322, 357, 391, 408, 476, 483, 552, 622, 644, 714, 782, 933, 952, 966, 1173, 1244, 1288, 1428, 1564, 1866, 1932, 2177, 2346, 2488, 2737, 2856, 3128, 3732, 3864, 4354, 4692, 5287, 5474, 6531, 7153, 7464, 8211, 8708, 9384, 10574, 10948, 13062, 14306, 15861, 16422, 17416, 21148, 21459, 21896, 26124, 28612, 31722, 32844, 37009, 42296, 42918, 50071, 52248, 57224, 63444, 65688, 74018, 85836, 100142, 111027, 121601, 126888, 148036, 150213, 171672, 200284, 222054, 243202, 296072, 300426, 364803, 400568, 444108, 486404, 600852, 729606, 851207, 888216, 972808, 1201704, 1459212, 1702414, 2553621, 2918424, 3404828, 5107242, 6809656, 10214484, 20428968]

約数ペア:

[(1, 20428968), (2, 10214484), (3, 6809656), (4, 5107242), (6, 3404828), (7, 2918424), (8, 2553621), (12, 1702414), (14, 1459212), (17, 1201704), (21, 972808), (23, 888216), (24, 851207), (28, 729606), (34, 600852), (42, 486404), (46, 444108), (51, 400568), (56, 364803), (68, 300426), (69, 296072), (84, 243202), (92, 222054), (102, 200284), (119, 171672), (136, 150213), (138, 148036), (161, 126888), (168, 121601), (184, 111027), (204, 100142), (238, 85836), (276, 74018), (311, 65688), (322, 63444), (357, 57224), (391, 52248), (408, 50071), (476, 42918), (483, 42296), (552, 37009), (622, 32844), (644, 31722), (714, 28612), (782, 26124), (933, 21896), (952, 21459), (966, 21148), (1173, 17416), (1244, 16422), (1288, 15861), (1428, 14306), (1564, 13062), (1866, 10948), (1932, 10574), (2177, 9384), (2346, 8708), (2488, 8211), (2737, 7464), (2856, 7153), (3128, 6531), (3732, 5474), (3864, 5287), (4354, 4692)]