27791140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1201}}^1$

素因数の和:1312

約数の個数: 48

約数和(自身を含む): 63609840

約数和(自身を除く): 35818700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 178, 260, 356, 445, 890, 1157, 1201, 1780, 2314, 2402, 4628, 4804, 5785, 6005, 11570, 12010, 15613, 23140, 24020, 31226, 62452, 78065, 106889, 156130, 213778, 312260, 427556, 534445, 1068890, 1389557, 2137780, 2779114, 5558228, 6947785, 13895570, 27791140]

約数ペア:

[(1, 27791140), (2, 13895570), (4, 6947785), (5, 5558228), (10, 2779114), (13, 2137780), (20, 1389557), (26, 1068890), (52, 534445), (65, 427556), (89, 312260), (130, 213778), (178, 156130), (260, 106889), (356, 78065), (445, 62452), (890, 31226), (1157, 24020), (1201, 23140), (1780, 15613), (2314, 12010), (2402, 11570), (4628, 6005), (4804, 5785)]