66628328

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 141039360

約数和(自身を除く): 74411032

約数列:

[1, 2, 4, 8, 13, 26, 43, 47, 52, 86, 94, 104, 172, 188, 317, 344, 376, 559, 611, 634, 1118, 1222, 1268, 2021, 2236, 2444, 2536, 4042, 4121, 4472, 4888, 8084, 8242, 13631, 14899, 16168, 16484, 26273, 27262, 29798, 32968, 52546, 54524, 59596, 105092, 109048, 119192, 177203, 193687, 210184, 354406, 387374, 640657, 708812, 774748, 1281314, 1417624, 1549496, 2562628, 5125256, 8328541, 16657082, 33314164, 66628328]

約数ペア:

[(1, 66628328), (2, 33314164), (4, 16657082), (8, 8328541), (13, 5125256), (26, 2562628), (43, 1549496), (47, 1417624), (52, 1281314), (86, 774748), (94, 708812), (104, 640657), (172, 387374), (188, 354406), (317, 210184), (344, 193687), (376, 177203), (559, 119192), (611, 109048), (634, 105092), (1118, 59596), (1222, 54524), (1268, 52546), (2021, 32968), (2236, 29798), (2444, 27262), (2536, 26273), (4042, 16484), (4121, 16168), (4472, 14899), (4888, 13631), (8084, 8242)]