261544272

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1$

素因数の和:130

約数の個数: 240

約数和(自身を含む): 829470720

約数和(自身を除く): 567926448

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 19, 22, 24, 29, 31, 33, 38, 44, 48, 57, 58, 62, 66, 76, 87, 88, 93, 114, 116, 124, 132, 152, 174, 176, 186, 209, 228, 232, 248, 264, 304, 319, 341, 348, 372, 418, 456, 464, 496, 528, 551, 589, 627, 638, 682, 696, 744, 836, 841, 899, 912, 957, 1023, 1102, 1178, 1254, 1276, 1364, 1392, 1488, 1653, 1672, 1682, 1767, 1798, 1914, 2046, 2204, 2356, 2508, 2523, 2552, 2697, 2728, 3306, 3344, 3364, 3534, 3596, 3828, 4092, 4408, 4712, 5016, 5046, 5104, 5394, 5456, 6061, 6479, 6612, 6728, 7068, 7192, 7656, 8184, 8816, 9251, 9424, 9889, 10032, 10092, 10788, 12122, 12958, 13224, 13456, 14136, 14384, 15312, 15979, 16368, 17081, 18183, 18502, 19437, 19778, 20184, 21576, 24244, 25916, 26071, 26448, 27753, 28272, 29667, 31958, 34162, 36366, 37004, 38874, 39556, 40368, 43152, 47937, 48488, 51243, 51832, 52142, 55506, 59334, 63916, 68324, 72732, 74008, 77748, 78213, 79112, 95874, 96976, 102486, 103664, 104284, 111012, 118668, 127832, 136648, 145464, 148016, 155496, 156426, 158224, 175769, 187891, 191748, 204972, 208568, 222024, 237336, 255664, 273296, 286781, 290928, 310992, 312852, 351538, 375782, 383496, 409944, 417136, 444048, 474672, 495349, 527307, 563673, 573562, 625704, 703076, 751564, 766992, 819888, 860343, 990698, 1054614, 1127346, 1147124, 1251408, 1406152, 1486047, 1503128, 1720686, 1981396, 2109228, 2254692, 2294248, 2812304, 2972094, 3006256, 3441372, 3962792, 4218456, 4509384, 4588496, 5448839, 5944188, 6882744, 7925584, 8436912, 9018768, 10897678, 11888376, 13765488, 16346517, 21795356, 23776752, 32693034, 43590712, 65386068, 87181424, 130772136, 261544272]

約数ペア:

[(1, 261544272), (2, 130772136), (3, 87181424), (4, 65386068), (6, 43590712), (8, 32693034), (11, 23776752), (12, 21795356), (16, 16346517), (19, 13765488), (22, 11888376), (24, 10897678), (29, 9018768), (31, 8436912), (33, 7925584), (38, 6882744), (44, 5944188), (48, 5448839), (57, 4588496), (58, 4509384), (62, 4218456), (66, 3962792), (76, 3441372), (87, 3006256), (88, 2972094), (93, 2812304), (114, 2294248), (116, 2254692), (124, 2109228), (132, 1981396), (152, 1720686), (174, 1503128), (176, 1486047), (186, 1406152), (209, 1251408), (228, 1147124), (232, 1127346), (248, 1054614), (264, 990698), (304, 860343), (319, 819888), (341, 766992), (348, 751564), (372, 703076), (418, 625704), (456, 573562), (464, 563673), (496, 527307), (528, 495349), (551, 474672), (589, 444048), (627, 417136), (638, 409944), (682, 383496), (696, 375782), (744, 351538), (836, 312852), (841, 310992), (899, 290928), (912, 286781), (957, 273296), (1023, 255664), (1102, 237336), (1178, 222024), (1254, 208568), (1276, 204972), (1364, 191748), (1392, 187891), (1488, 175769), (1653, 158224), (1672, 156426), (1682, 155496), (1767, 148016), (1798, 145464), (1914, 136648), (2046, 127832), (2204, 118668), (2356, 111012), (2508, 104284), (2523, 103664), (2552, 102486), (2697, 96976), (2728, 95874), (3306, 79112), (3344, 78213), (3364, 77748), (3534, 74008), (3596, 72732), (3828, 68324), (4092, 63916), (4408, 59334), (4712, 55506), (5016, 52142), (5046, 51832), (5104, 51243), (5394, 48488), (5456, 47937), (6061, 43152), (6479, 40368), (6612, 39556), (6728, 38874), (7068, 37004), (7192, 36366), (7656, 34162), (8184, 31958), (8816, 29667), (9251, 28272), (9424, 27753), (9889, 26448), (10032, 26071), (10092, 25916), (10788, 24244), (12122, 21576), (12958, 20184), (13224, 19778), (13456, 19437), (14136, 18502), (14384, 18183), (15312, 17081), (15979, 16368)]