20846384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:166

約数の個数: 80

約数和(自身を含む): 46497024

約数和(自身を除く): 25650640

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 53, 61, 62, 104, 106, 122, 124, 208, 212, 244, 248, 403, 424, 488, 496, 689, 793, 806, 848, 976, 1378, 1586, 1612, 1643, 1891, 2756, 3172, 3224, 3233, 3286, 3782, 5512, 6344, 6448, 6466, 6572, 7564, 11024, 12688, 12932, 13144, 15128, 21359, 24583, 25864, 26288, 30256, 42029, 42718, 49166, 51728, 84058, 85436, 98332, 100223, 168116, 170872, 196664, 200446, 336232, 341744, 393328, 400892, 672464, 801784, 1302899, 1603568, 2605798, 5211596, 10423192, 20846384]

約数ペア:

[(1, 20846384), (2, 10423192), (4, 5211596), (8, 2605798), (13, 1603568), (16, 1302899), (26, 801784), (31, 672464), (52, 400892), (53, 393328), (61, 341744), (62, 336232), (104, 200446), (106, 196664), (122, 170872), (124, 168116), (208, 100223), (212, 98332), (244, 85436), (248, 84058), (403, 51728), (424, 49166), (488, 42718), (496, 42029), (689, 30256), (793, 26288), (806, 25864), (848, 24583), (976, 21359), (1378, 15128), (1586, 13144), (1612, 12932), (1643, 12688), (1891, 11024), (2756, 7564), (3172, 6572), (3224, 6466), (3233, 6448), (3286, 6344), (3782, 5512)]