19798688

素因数分解:

$2^5\times 7^1\times {\mathrm{13}}^2\times {\mathrm{523}}^1$

素因数の和:566

約数の個数: 72

約数和(自身を含む): 48329568

約数和(自身を除く): 28530880

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 91, 104, 112, 169, 182, 208, 224, 338, 364, 416, 523, 676, 728, 1046, 1183, 1352, 1456, 2092, 2366, 2704, 2912, 3661, 4184, 4732, 5408, 6799, 7322, 8368, 9464, 13598, 14644, 16736, 18928, 27196, 29288, 37856, 47593, 54392, 58576, 88387, 95186, 108784, 117152, 176774, 190372, 217568, 353548, 380744, 618709, 707096, 761488, 1237418, 1414192, 1522976, 2474836, 2828384, 4949672, 9899344, 19798688]

約数ペア:

[(1, 19798688), (2, 9899344), (4, 4949672), (7, 2828384), (8, 2474836), (13, 1522976), (14, 1414192), (16, 1237418), (26, 761488), (28, 707096), (32, 618709), (52, 380744), (56, 353548), (91, 217568), (104, 190372), (112, 176774), (169, 117152), (182, 108784), (208, 95186), (224, 88387), (338, 58576), (364, 54392), (416, 47593), (523, 37856), (676, 29288), (728, 27196), (1046, 18928), (1183, 16736), (1352, 14644), (1456, 13598), (2092, 9464), (2366, 8368), (2704, 7322), (2912, 6799), (3661, 5408), (4184, 4732)]