28008180

素因数分解:

$2^2\times 3^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:157

約数の個数: 168

約数和(自身を含む): 94199112

約数和(自身を除く): 66190932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 81, 85, 90, 102, 108, 113, 135, 153, 162, 170, 180, 204, 226, 243, 255, 270, 306, 324, 339, 340, 405, 452, 459, 486, 510, 540, 565, 612, 678, 729, 765, 810, 918, 972, 1017, 1020, 1130, 1215, 1356, 1377, 1458, 1530, 1620, 1695, 1836, 1921, 2034, 2260, 2295, 2430, 2754, 2916, 3051, 3060, 3390, 3645, 3842, 4068, 4131, 4590, 4860, 5085, 5508, 5763, 6102, 6780, 6885, 7290, 7684, 8262, 9153, 9180, 9605, 10170, 11526, 12204, 12393, 13770, 14580, 15255, 16524, 17289, 18306, 19210, 20340, 20655, 23052, 24786, 27459, 27540, 28815, 30510, 34578, 36612, 38420, 41310, 45765, 49572, 51867, 54918, 57630, 61020, 61965, 69156, 82377, 82620, 86445, 91530, 103734, 109836, 115260, 123930, 137295, 155601, 164754, 172890, 183060, 207468, 247860, 259335, 274590, 311202, 329508, 345780, 411885, 466803, 518670, 549180, 622404, 778005, 823770, 933606, 1037340, 1400409, 1556010, 1647540, 1867212, 2334015, 2800818, 3112020, 4668030, 5601636, 7002045, 9336060, 14004090, 28008180]

約数ペア:

[(1, 28008180), (2, 14004090), (3, 9336060), (4, 7002045), (5, 5601636), (6, 4668030), (9, 3112020), (10, 2800818), (12, 2334015), (15, 1867212), (17, 1647540), (18, 1556010), (20, 1400409), (27, 1037340), (30, 933606), (34, 823770), (36, 778005), (45, 622404), (51, 549180), (54, 518670), (60, 466803), (68, 411885), (81, 345780), (85, 329508), (90, 311202), (102, 274590), (108, 259335), (113, 247860), (135, 207468), (153, 183060), (162, 172890), (170, 164754), (180, 155601), (204, 137295), (226, 123930), (243, 115260), (255, 109836), (270, 103734), (306, 91530), (324, 86445), (339, 82620), (340, 82377), (405, 69156), (452, 61965), (459, 61020), (486, 57630), (510, 54918), (540, 51867), (565, 49572), (612, 45765), (678, 41310), (729, 38420), (765, 36612), (810, 34578), (918, 30510), (972, 28815), (1017, 27540), (1020, 27459), (1130, 24786), (1215, 23052), (1356, 20655), (1377, 20340), (1458, 19210), (1530, 18306), (1620, 17289), (1695, 16524), (1836, 15255), (1921, 14580), (2034, 13770), (2260, 12393), (2295, 12204), (2430, 11526), (2754, 10170), (2916, 9605), (3051, 9180), (3060, 9153), (3390, 8262), (3645, 7684), (3842, 7290), (4068, 6885), (4131, 6780), (4590, 6102), (4860, 5763), (5085, 5508)]