20720532

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 56881440

約数和(自身を除く): 36160908

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 131, 147, 196, 262, 269, 294, 393, 524, 538, 588, 786, 807, 917, 1076, 1572, 1614, 1834, 1883, 2751, 3228, 3668, 3766, 5502, 5649, 6419, 7532, 11004, 11298, 12838, 13181, 19257, 22596, 25676, 26362, 35239, 38514, 39543, 52724, 70478, 77028, 79086, 105717, 140956, 158172, 211434, 246673, 422868, 493346, 740019, 986692, 1480038, 1726711, 2960076, 3453422, 5180133, 6906844, 10360266, 20720532]

約数ペア:

[(1, 20720532), (2, 10360266), (3, 6906844), (4, 5180133), (6, 3453422), (7, 2960076), (12, 1726711), (14, 1480038), (21, 986692), (28, 740019), (42, 493346), (49, 422868), (84, 246673), (98, 211434), (131, 158172), (147, 140956), (196, 105717), (262, 79086), (269, 77028), (294, 70478), (393, 52724), (524, 39543), (538, 38514), (588, 35239), (786, 26362), (807, 25676), (917, 22596), (1076, 19257), (1572, 13181), (1614, 12838), (1834, 11298), (1883, 11004), (2751, 7532), (3228, 6419), (3668, 5649), (3766, 5502)]