261352016

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{25969}}^1$

素因数の和:26031

約数の個数: 40

約数和(自身を含む): 550667880

約数和(自身を除く): 289315864

約数列:

[1, 2, 4, 8, 16, 17, 34, 37, 68, 74, 136, 148, 272, 296, 592, 629, 1258, 2516, 5032, 10064, 25969, 51938, 103876, 207752, 415504, 441473, 882946, 960853, 1765892, 1921706, 3531784, 3843412, 7063568, 7686824, 15373648, 16334501, 32669002, 65338004, 130676008, 261352016]

約数ペア:

[(1, 261352016), (2, 130676008), (4, 65338004), (8, 32669002), (16, 16334501), (17, 15373648), (34, 7686824), (37, 7063568), (68, 3843412), (74, 3531784), (136, 1921706), (148, 1765892), (272, 960853), (296, 882946), (592, 441473), (629, 415504), (1258, 207752), (2516, 103876), (5032, 51938), (10064, 25969)]