261639136

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{20089}}^1$

素因数の和:20147

約数の個数: 48

約数和(自身を含む): 577145520

約数和(自身を除く): 315506384

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 37, 44, 74, 88, 148, 176, 296, 352, 407, 592, 814, 1184, 1628, 3256, 6512, 13024, 20089, 40178, 80356, 160712, 220979, 321424, 441958, 642848, 743293, 883916, 1486586, 1767832, 2973172, 3535664, 5946344, 7071328, 8176223, 11892688, 16352446, 23785376, 32704892, 65409784, 130819568, 261639136]

約数ペア:

[(1, 261639136), (2, 130819568), (4, 65409784), (8, 32704892), (11, 23785376), (16, 16352446), (22, 11892688), (32, 8176223), (37, 7071328), (44, 5946344), (74, 3535664), (88, 2973172), (148, 1767832), (176, 1486586), (296, 883916), (352, 743293), (407, 642848), (592, 441958), (814, 321424), (1184, 220979), (1628, 160712), (3256, 80356), (6512, 40178), (13024, 20089)]