20340976

素因数分解:

$2^4\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:178

約数の個数: 60

約数和(自身を含む): 43169112

約数和(自身を除く): 22828136

約数列:

[1, 2, 4, 8, 16, 17, 34, 53, 68, 83, 106, 136, 166, 212, 272, 289, 332, 424, 578, 664, 848, 901, 1156, 1328, 1411, 1802, 2312, 2822, 3604, 4399, 4624, 5644, 7208, 8798, 11288, 14416, 15317, 17596, 22576, 23987, 30634, 35192, 47974, 61268, 70384, 74783, 95948, 122536, 149566, 191896, 245072, 299132, 383792, 598264, 1196528, 1271311, 2542622, 5085244, 10170488, 20340976]

約数ペア:

[(1, 20340976), (2, 10170488), (4, 5085244), (8, 2542622), (16, 1271311), (17, 1196528), (34, 598264), (53, 383792), (68, 299132), (83, 245072), (106, 191896), (136, 149566), (166, 122536), (212, 95948), (272, 74783), (289, 70384), (332, 61268), (424, 47974), (578, 35192), (664, 30634), (848, 23987), (901, 22576), (1156, 17596), (1328, 15317), (1411, 14416), (1802, 11288), (2312, 8798), (2822, 7208), (3604, 5644), (4399, 4624)]