261635528

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{1217}}^1$

素因数の和:1590

約数の個数: 64

約数和(自身を含む): 613872000

約数和(自身を除く): 352236472

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 308, 349, 616, 698, 1217, 1396, 2434, 2443, 2792, 3839, 4868, 4886, 7678, 8519, 9736, 9772, 13387, 15356, 17038, 19544, 26774, 26873, 30712, 34076, 53548, 53746, 68152, 93709, 107096, 107492, 187418, 214984, 374836, 424733, 749672, 849466, 1698932, 2973131, 3397864, 4672063, 5946262, 9344126, 11892524, 18688252, 23785048, 32704441, 37376504, 65408882, 130817764, 261635528]

約数ペア:

[(1, 261635528), (2, 130817764), (4, 65408882), (7, 37376504), (8, 32704441), (11, 23785048), (14, 18688252), (22, 11892524), (28, 9344126), (44, 5946262), (56, 4672063), (77, 3397864), (88, 2973131), (154, 1698932), (308, 849466), (349, 749672), (616, 424733), (698, 374836), (1217, 214984), (1396, 187418), (2434, 107492), (2443, 107096), (2792, 93709), (3839, 68152), (4868, 53746), (4886, 53548), (7678, 34076), (8519, 30712), (9736, 26873), (9772, 26774), (13387, 19544), (15356, 17038)]