204350980

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:828

約数の個数: 48

約数和(自身を含む): 436907520

約数和(自身を除く): 232556540

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 257, 332, 415, 479, 514, 830, 958, 1028, 1285, 1660, 1916, 2395, 2570, 4790, 5140, 9580, 21331, 39757, 42662, 79514, 85324, 106655, 123103, 159028, 198785, 213310, 246206, 397570, 426620, 492412, 615515, 795140, 1231030, 2462060, 10217549, 20435098, 40870196, 51087745, 102175490, 204350980]

約数ペア:

[(1, 204350980), (2, 102175490), (4, 51087745), (5, 40870196), (10, 20435098), (20, 10217549), (83, 2462060), (166, 1231030), (257, 795140), (332, 615515), (415, 492412), (479, 426620), (514, 397570), (830, 246206), (958, 213310), (1028, 198785), (1285, 159028), (1660, 123103), (1916, 106655), (2395, 85324), (2570, 79514), (4790, 42662), (5140, 39757), (9580, 21331)]