261345285

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11321}}^1$

素因数の和:11360

約数の個数: 48

約数和(自身を含む): 494544960

約数和(自身を除く): 233199675

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 405, 513, 855, 1215, 1539, 2565, 4617, 7695, 11321, 23085, 33963, 56605, 101889, 169815, 215099, 305667, 509445, 645297, 917001, 1075495, 1528335, 1935891, 2751003, 3226485, 4585005, 5807673, 9679455, 13755015, 17423019, 29038365, 52269057, 87115095, 261345285]

約数ペア:

[(1, 261345285), (3, 87115095), (5, 52269057), (9, 29038365), (15, 17423019), (19, 13755015), (27, 9679455), (45, 5807673), (57, 4585005), (81, 3226485), (95, 2751003), (135, 1935891), (171, 1528335), (243, 1075495), (285, 917001), (405, 645297), (513, 509445), (855, 305667), (1215, 215099), (1539, 169815), (2565, 101889), (4617, 56605), (7695, 33963), (11321, 23085)]