20666016

素因数分解:

$2^5\times 3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:113

約数の個数: 240

約数和(自身を含む): 74644416

約数和(自身を除く): 53978400

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 21, 24, 27, 28, 32, 34, 36, 42, 48, 51, 54, 56, 63, 67, 68, 72, 81, 84, 96, 102, 108, 112, 119, 126, 134, 136, 144, 153, 162, 168, 189, 201, 204, 216, 224, 238, 252, 268, 272, 288, 306, 324, 336, 357, 378, 402, 408, 432, 459, 469, 476, 504, 536, 544, 567, 603, 612, 648, 672, 714, 756, 804, 816, 864, 918, 938, 952, 1008, 1071, 1072, 1134, 1139, 1206, 1224, 1296, 1377, 1407, 1428, 1512, 1608, 1632, 1809, 1836, 1876, 1904, 2016, 2142, 2144, 2268, 2278, 2412, 2448, 2592, 2754, 2814, 2856, 3024, 3213, 3216, 3417, 3618, 3672, 3752, 3808, 4221, 4284, 4536, 4556, 4824, 4896, 5427, 5508, 5628, 5712, 6048, 6426, 6432, 6834, 7236, 7344, 7504, 7973, 8442, 8568, 9072, 9112, 9639, 9648, 10251, 10854, 11016, 11256, 11424, 12663, 12852, 13668, 14472, 14688, 15008, 15946, 16884, 17136, 18144, 18224, 19278, 19296, 20502, 21708, 22032, 22512, 23919, 25326, 25704, 27336, 28944, 30753, 31892, 33768, 34272, 36448, 37989, 38556, 41004, 43416, 44064, 45024, 47838, 50652, 51408, 54672, 57888, 61506, 63784, 67536, 71757, 75978, 77112, 82008, 86832, 92259, 95676, 101304, 102816, 109344, 123012, 127568, 135072, 143514, 151956, 154224, 164016, 173664, 184518, 191352, 202608, 215271, 246024, 255136, 287028, 303912, 308448, 328032, 369036, 382704, 405216, 430542, 492048, 574056, 607824, 645813, 738072, 765408, 861084, 984096, 1148112, 1215648, 1291626, 1476144, 1722168, 2296224, 2583252, 2952288, 3444336, 5166504, 6888672, 10333008, 20666016]

約数ペア:

[(1, 20666016), (2, 10333008), (3, 6888672), (4, 5166504), (6, 3444336), (7, 2952288), (8, 2583252), (9, 2296224), (12, 1722168), (14, 1476144), (16, 1291626), (17, 1215648), (18, 1148112), (21, 984096), (24, 861084), (27, 765408), (28, 738072), (32, 645813), (34, 607824), (36, 574056), (42, 492048), (48, 430542), (51, 405216), (54, 382704), (56, 369036), (63, 328032), (67, 308448), (68, 303912), (72, 287028), (81, 255136), (84, 246024), (96, 215271), (102, 202608), (108, 191352), (112, 184518), (119, 173664), (126, 164016), (134, 154224), (136, 151956), (144, 143514), (153, 135072), (162, 127568), (168, 123012), (189, 109344), (201, 102816), (204, 101304), (216, 95676), (224, 92259), (238, 86832), (252, 82008), (268, 77112), (272, 75978), (288, 71757), (306, 67536), (324, 63784), (336, 61506), (357, 57888), (378, 54672), (402, 51408), (408, 50652), (432, 47838), (459, 45024), (469, 44064), (476, 43416), (504, 41004), (536, 38556), (544, 37989), (567, 36448), (603, 34272), (612, 33768), (648, 31892), (672, 30753), (714, 28944), (756, 27336), (804, 25704), (816, 25326), (864, 23919), (918, 22512), (938, 22032), (952, 21708), (1008, 20502), (1071, 19296), (1072, 19278), (1134, 18224), (1139, 18144), (1206, 17136), (1224, 16884), (1296, 15946), (1377, 15008), (1407, 14688), (1428, 14472), (1512, 13668), (1608, 12852), (1632, 12663), (1809, 11424), (1836, 11256), (1876, 11016), (1904, 10854), (2016, 10251), (2142, 9648), (2144, 9639), (2268, 9112), (2278, 9072), (2412, 8568), (2448, 8442), (2592, 7973), (2754, 7504), (2814, 7344), (2856, 7236), (3024, 6834), (3213, 6432), (3216, 6426), (3417, 6048), (3618, 5712), (3672, 5628), (3752, 5508), (3808, 5427), (4221, 4896), (4284, 4824), (4536, 4556)]