20196748

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:143

約数の個数: 96

約数和(自身を含む): 46061568

約数和(自身を除く): 25864820

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 31, 34, 44, 52, 62, 67, 68, 124, 134, 143, 187, 221, 268, 286, 341, 374, 403, 442, 527, 572, 682, 737, 748, 806, 871, 884, 1054, 1139, 1364, 1474, 1612, 1742, 2077, 2108, 2278, 2431, 2948, 3484, 4154, 4433, 4556, 4862, 5797, 6851, 8308, 8866, 9581, 9724, 11594, 12529, 13702, 14807, 17732, 19162, 22847, 23188, 25058, 27001, 27404, 29614, 35309, 38324, 45694, 50116, 54002, 59228, 70618, 75361, 91388, 108004, 141236, 150722, 162877, 297011, 301444, 325754, 388399, 459017, 594022, 651508, 776798, 918034, 1188044, 1553596, 1836068, 5049187, 10098374, 20196748]

約数ペア:

[(1, 20196748), (2, 10098374), (4, 5049187), (11, 1836068), (13, 1553596), (17, 1188044), (22, 918034), (26, 776798), (31, 651508), (34, 594022), (44, 459017), (52, 388399), (62, 325754), (67, 301444), (68, 297011), (124, 162877), (134, 150722), (143, 141236), (187, 108004), (221, 91388), (268, 75361), (286, 70618), (341, 59228), (374, 54002), (403, 50116), (442, 45694), (527, 38324), (572, 35309), (682, 29614), (737, 27404), (748, 27001), (806, 25058), (871, 23188), (884, 22847), (1054, 19162), (1139, 17732), (1364, 14807), (1474, 13702), (1612, 12529), (1742, 11594), (2077, 9724), (2108, 9581), (2278, 8866), (2431, 8308), (2948, 6851), (3484, 5797), (4154, 4862), (4433, 4556)]