261630

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:55

約数の個数: 80

約数和(自身を含む): 784080

約数和(自身を除く): 522450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 19, 27, 30, 34, 38, 45, 51, 54, 57, 81, 85, 90, 95, 102, 114, 135, 153, 162, 170, 171, 190, 255, 270, 285, 306, 323, 342, 405, 459, 510, 513, 570, 646, 765, 810, 855, 918, 969, 1026, 1377, 1530, 1539, 1615, 1710, 1938, 2295, 2565, 2754, 2907, 3078, 3230, 4590, 4845, 5130, 5814, 6885, 7695, 8721, 9690, 13770, 14535, 15390, 17442, 26163, 29070, 43605, 52326, 87210, 130815, 261630]

約数ペア:

[(1, 261630), (2, 130815), (3, 87210), (5, 52326), (6, 43605), (9, 29070), (10, 26163), (15, 17442), (17, 15390), (18, 14535), (19, 13770), (27, 9690), (30, 8721), (34, 7695), (38, 6885), (45, 5814), (51, 5130), (54, 4845), (57, 4590), (81, 3230), (85, 3078), (90, 2907), (95, 2754), (102, 2565), (114, 2295), (135, 1938), (153, 1710), (162, 1615), (170, 1539), (171, 1530), (190, 1377), (255, 1026), (270, 969), (285, 918), (306, 855), (323, 810), (342, 765), (405, 646), (459, 570), (510, 513)]