20298852

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{739}}^1$

素因数の和:865

約数の個数: 72

約数和(自身を含む): 59259200

約数和(自身を除く): 38960348

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 109, 126, 218, 252, 327, 436, 654, 739, 763, 981, 1308, 1478, 1526, 1962, 2217, 2289, 2956, 3052, 3924, 4434, 4578, 5173, 6651, 6867, 8868, 9156, 10346, 13302, 13734, 15519, 20692, 26604, 27468, 31038, 46557, 62076, 80551, 93114, 161102, 186228, 241653, 322204, 483306, 563857, 724959, 966612, 1127714, 1449918, 1691571, 2255428, 2899836, 3383142, 5074713, 6766284, 10149426, 20298852]

約数ペア:

[(1, 20298852), (2, 10149426), (3, 6766284), (4, 5074713), (6, 3383142), (7, 2899836), (9, 2255428), (12, 1691571), (14, 1449918), (18, 1127714), (21, 966612), (28, 724959), (36, 563857), (42, 483306), (63, 322204), (84, 241653), (109, 186228), (126, 161102), (218, 93114), (252, 80551), (327, 62076), (436, 46557), (654, 31038), (739, 27468), (763, 26604), (981, 20692), (1308, 15519), (1478, 13734), (1526, 13302), (1962, 10346), (2217, 9156), (2289, 8868), (2956, 6867), (3052, 6651), (3924, 5173), (4434, 4578)]