19975904

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1549}}^1$

素因数の和:1603

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 23771296

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 104, 124, 208, 248, 403, 416, 496, 806, 992, 1549, 1612, 3098, 3224, 6196, 6448, 12392, 12896, 20137, 24784, 40274, 48019, 49568, 80548, 96038, 161096, 192076, 322192, 384152, 624247, 644384, 768304, 1248494, 1536608, 2496988, 4993976, 9987952, 19975904]

約数ペア:

[(1, 19975904), (2, 9987952), (4, 4993976), (8, 2496988), (13, 1536608), (16, 1248494), (26, 768304), (31, 644384), (32, 624247), (52, 384152), (62, 322192), (104, 192076), (124, 161096), (208, 96038), (248, 80548), (403, 49568), (416, 48019), (496, 40274), (806, 24784), (992, 20137), (1549, 12896), (1612, 12392), (3098, 6448), (3224, 6196)]