491164340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{7333}}^1$

素因数の和:7556

約数の個数: 48

約数和(自身を含む): 1097811792

約数和(自身を除く): 606647452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 197, 340, 394, 788, 985, 1970, 3349, 3940, 6698, 7333, 13396, 14666, 16745, 29332, 33490, 36665, 66980, 73330, 124661, 146660, 249322, 498644, 623305, 1246610, 1444601, 2493220, 2889202, 5778404, 7223005, 14446010, 24558217, 28892020, 49116434, 98232868, 122791085, 245582170, 491164340]

約数ペア:

[(1, 491164340), (2, 245582170), (4, 122791085), (5, 98232868), (10, 49116434), (17, 28892020), (20, 24558217), (34, 14446010), (68, 7223005), (85, 5778404), (170, 2889202), (197, 2493220), (340, 1444601), (394, 1246610), (788, 623305), (985, 498644), (1970, 249322), (3349, 146660), (3940, 124661), (6698, 73330), (7333, 66980), (13396, 36665), (14666, 33490), (16745, 29332)]