720990116

素因数分解:

$2^2\times 7^3\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:191

約数の個数: 144

約数和(自身を含む): 1671331200

約数和(自身を除く): 950341084

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 49, 77, 86, 98, 101, 121, 154, 172, 196, 202, 242, 301, 308, 343, 404, 473, 484, 539, 602, 686, 707, 847, 946, 1078, 1111, 1204, 1372, 1414, 1694, 1892, 2107, 2156, 2222, 2828, 3311, 3388, 3773, 4214, 4343, 4444, 4949, 5203, 5929, 6622, 7546, 7777, 8428, 8686, 9898, 10406, 11858, 12221, 13244, 14749, 15092, 15554, 17372, 19796, 20812, 23177, 23716, 24442, 29498, 30401, 31108, 34643, 36421, 41503, 46354, 47773, 48884, 54439, 58996, 60802, 69286, 72842, 83006, 85547, 92708, 95546, 108878, 121604, 138572, 145684, 162239, 166012, 171094, 191092, 212807, 217756, 254947, 324478, 334411, 342188, 381073, 425614, 509894, 525503, 598829, 648956, 668822, 762146, 851228, 1019788, 1051006, 1197658, 1337644, 1489649, 1524292, 1784629, 2102012, 2340877, 2395316, 2979298, 3569258, 3678521, 4191803, 4681754, 5958596, 7138516, 7357042, 8383606, 9363508, 14714084, 16386139, 16767212, 25749647, 32772278, 51499294, 65544556, 102998588, 180247529, 360495058, 720990116]

約数ペア:

[(1, 720990116), (2, 360495058), (4, 180247529), (7, 102998588), (11, 65544556), (14, 51499294), (22, 32772278), (28, 25749647), (43, 16767212), (44, 16386139), (49, 14714084), (77, 9363508), (86, 8383606), (98, 7357042), (101, 7138516), (121, 5958596), (154, 4681754), (172, 4191803), (196, 3678521), (202, 3569258), (242, 2979298), (301, 2395316), (308, 2340877), (343, 2102012), (404, 1784629), (473, 1524292), (484, 1489649), (539, 1337644), (602, 1197658), (686, 1051006), (707, 1019788), (847, 851228), (946, 762146), (1078, 668822), (1111, 648956), (1204, 598829), (1372, 525503), (1414, 509894), (1694, 425614), (1892, 381073), (2107, 342188), (2156, 334411), (2222, 324478), (2828, 254947), (3311, 217756), (3388, 212807), (3773, 191092), (4214, 171094), (4343, 166012), (4444, 162239), (4949, 145684), (5203, 138572), (5929, 121604), (6622, 108878), (7546, 95546), (7777, 92708), (8428, 85547), (8686, 83006), (9898, 72842), (10406, 69286), (11858, 60802), (12221, 58996), (13244, 54439), (14749, 48884), (15092, 47773), (15554, 46354), (17372, 41503), (19796, 36421), (20812, 34643), (23177, 31108), (23716, 30401), (24442, 29498)]