2561265

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 5211648

約数和(自身を除く): 2650383

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 47, 63, 105, 141, 173, 235, 315, 329, 423, 519, 705, 865, 987, 1211, 1557, 1645, 2115, 2595, 2961, 3633, 4935, 6055, 7785, 8131, 10899, 14805, 18165, 24393, 40655, 54495, 56917, 73179, 121965, 170751, 284585, 365895, 512253, 853755, 2561265]

約数ペア:

[(1, 2561265), (3, 853755), (5, 512253), (7, 365895), (9, 284585), (15, 170751), (21, 121965), (35, 73179), (45, 56917), (47, 54495), (63, 40655), (105, 24393), (141, 18165), (173, 14805), (235, 10899), (315, 8131), (329, 7785), (423, 6055), (519, 4935), (705, 3633), (865, 2961), (987, 2595), (1211, 2115), (1557, 1645)]