28130580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{317}}^1$

素因数の和:378

約数の個数: 144

約数和(自身を含む): 93759120

約数和(自身を除く): 65628540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 29, 30, 34, 36, 45, 51, 58, 60, 68, 85, 87, 90, 102, 116, 145, 153, 170, 174, 180, 204, 255, 261, 290, 306, 317, 340, 348, 435, 493, 510, 522, 580, 612, 634, 765, 870, 951, 986, 1020, 1044, 1268, 1305, 1479, 1530, 1585, 1740, 1902, 1972, 2465, 2610, 2853, 2958, 3060, 3170, 3804, 4437, 4755, 4930, 5220, 5389, 5706, 5916, 6340, 7395, 8874, 9193, 9510, 9860, 10778, 11412, 14265, 14790, 16167, 17748, 18386, 19020, 21556, 22185, 26945, 27579, 28530, 29580, 32334, 36772, 44370, 45965, 48501, 53890, 55158, 57060, 64668, 80835, 82737, 88740, 91930, 97002, 107780, 110316, 137895, 156281, 161670, 165474, 183860, 194004, 242505, 275790, 312562, 323340, 330948, 413685, 468843, 485010, 551580, 625124, 781405, 827370, 937686, 970020, 1406529, 1562810, 1654740, 1875372, 2344215, 2813058, 3125620, 4688430, 5626116, 7032645, 9376860, 14065290, 28130580]

約数ペア:

[(1, 28130580), (2, 14065290), (3, 9376860), (4, 7032645), (5, 5626116), (6, 4688430), (9, 3125620), (10, 2813058), (12, 2344215), (15, 1875372), (17, 1654740), (18, 1562810), (20, 1406529), (29, 970020), (30, 937686), (34, 827370), (36, 781405), (45, 625124), (51, 551580), (58, 485010), (60, 468843), (68, 413685), (85, 330948), (87, 323340), (90, 312562), (102, 275790), (116, 242505), (145, 194004), (153, 183860), (170, 165474), (174, 161670), (180, 156281), (204, 137895), (255, 110316), (261, 107780), (290, 97002), (306, 91930), (317, 88740), (340, 82737), (348, 80835), (435, 64668), (493, 57060), (510, 55158), (522, 53890), (580, 48501), (612, 45965), (634, 44370), (765, 36772), (870, 32334), (951, 29580), (986, 28530), (1020, 27579), (1044, 26945), (1268, 22185), (1305, 21556), (1479, 19020), (1530, 18386), (1585, 17748), (1740, 16167), (1902, 14790), (1972, 14265), (2465, 11412), (2610, 10778), (2853, 9860), (2958, 9510), (3060, 9193), (3170, 8874), (3804, 7395), (4437, 6340), (4755, 5916), (4930, 5706), (5220, 5389)]