217816912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:884

約数の個数: 80

約数和(自身を含む): 474969600

約数和(自身を除く): 257152688

約数列:

[1, 2, 4, 8, 16, 19, 29, 31, 38, 58, 62, 76, 116, 124, 152, 232, 248, 304, 464, 496, 551, 589, 797, 899, 1102, 1178, 1594, 1798, 2204, 2356, 3188, 3596, 4408, 4712, 6376, 7192, 8816, 9424, 12752, 14384, 15143, 17081, 23113, 24707, 30286, 34162, 46226, 49414, 60572, 68324, 92452, 98828, 121144, 136648, 184904, 197656, 242288, 273296, 369808, 395312, 439147, 469433, 716503, 878294, 938866, 1433006, 1756588, 1877732, 2866012, 3513176, 3755464, 5732024, 7026352, 7510928, 11464048, 13613557, 27227114, 54454228, 108908456, 217816912]

約数ペア:

[(1, 217816912), (2, 108908456), (4, 54454228), (8, 27227114), (16, 13613557), (19, 11464048), (29, 7510928), (31, 7026352), (38, 5732024), (58, 3755464), (62, 3513176), (76, 2866012), (116, 1877732), (124, 1756588), (152, 1433006), (232, 938866), (248, 878294), (304, 716503), (464, 469433), (496, 439147), (551, 395312), (589, 369808), (797, 273296), (899, 242288), (1102, 197656), (1178, 184904), (1594, 136648), (1798, 121144), (2204, 98828), (2356, 92452), (3188, 68324), (3596, 60572), (4408, 49414), (4712, 46226), (6376, 34162), (7192, 30286), (8816, 24707), (9424, 23113), (12752, 17081), (14384, 15143)]